PART III: Financial Planning and Opportunity Assessment

"Great recommendations are not built on optimistic guesses. They are built on realistic assumptions supported by credible financial analysis."

Understanding the current financial position of an organization is only the beginning.

Business leaders rarely ask consultants simply to diagnose problems.

They ask them to recommend solutions.

Those solutions must be financially realistic.

Whether proposing a new product launch, entering a new market, implementing new technology, expanding internationally, or acquiring another company, decision-makers want to know one fundamental question:

Is the opportunity large enough to matter?

Case competitors face exactly the same challenge.

Judges expect recommendations to be supported by credible financial reasoning rather than optimistic assumptions. It is not enough to say that sales will increase or costs will decrease. Teams must demonstrate where those numbers come from, whether the assumptions are realistic, and whether the opportunity is financially meaningful.

This section introduces the financial planning tools used to answer those questions.

You will learn how to estimate market opportunities, build financial assumptions, construct realistic budgets, evaluate investments, value organizations, and test the robustness of your recommendations under uncertainty.

Rather than focusing on accounting, this section focuses on decision-making.

Every calculation should answer a business question.

Every assumption should strengthen the credibility of your recommendation.

Throughout this section, remember an important principle:

Judges rarely expect perfect numbers. They expect logical thinking supported by reasonable assumptions.

That is the purpose of financial planning.

It transforms ideas into credible business recommendations.

Chapter 5 Market Sizing with TAM, SAM and SOM

Estimating the Opportunity Before Building the Solution

Learning Objectives

By the end of this chapter you should be able to:

understand the purpose of market sizing
distinguish between TAM, SAM and SOM
estimate market opportunities using logical assumptions
evaluate whether an opportunity is financially meaningful
communicate market potential using executive-level visuals
avoid unrealistic market projections
connect market sizing directly to strategic recommendations

Why This Matters

One of the fastest ways to lose credibility in a case competition is to present unrealistic market estimates.

"We expect to capture 15% of the global market."

"We believe revenues will reach $2 billion within five years."

Judges hear statements like these every year.

Very few believe them.

Successful competitors understand that market sizing is not about producing the largest possible number.

It is about demonstrating that you understand the market you intend to serve.

Investors, executives and judges all ask similar questions.

How large is the opportunity?

How much of that opportunity can we realistically reach?

How much can we reasonably capture?

TAM, SAM and SOM provide a structured framework for answering those questions.

Thinking Like an Investor

Before investing millions of dollars, executives ask three questions:

Is the market worth entering?

↓

Can our organization actually compete?

↓

How much business can we realistically win?

These questions correspond directly to the three components of market sizing.

Understanding TAM

Total Addressable Market

TAM represents the total revenue opportunity if every potential customer purchased your product or service.

It answers the question:

How large could this market eventually become?

Think of TAM as the theoretical ceiling.

It assumes:

every potential customer
every geographic region
every applicable market segment
complete market penetration

Very few organizations ever achieve their TAM.

That is not the purpose.

Its purpose is to demonstrate the size of the overall opportunity.

Example

Suppose a company develops educational software for university students.

Canada has approximately two million post-secondary students.

If the average annual subscription costs $150:

TAM =

2,000,000 students × $150

= $300 million annually

This represents the maximum possible opportunity within Canada.

Building Credible TAM Estimates

Use reliable data whenever possible.

Possible sources include:

government statistics
census information
industry associations
market research reports
annual reports
trade publications

Avoid outdated estimates.

Explain your assumptions clearly.

Remember:

The objective is credibility—not precision.

Understanding SAM

Serviceable Addressable Market

Few organizations can serve an entire market immediately.

SAM narrows TAM to the customers your organization can realistically serve given its capabilities.

It considers:

geography
regulations
language
technology
distribution channels
pricing
operational capacity

SAM answers the question:

Which portion of the total market can we actually serve?

Continuing the Example

Suppose the software is currently available only in English and only targets Canadian universities.

Private colleges and international markets are excluded.

After adjusting for accessibility:

SAM becomes

$180 million.

The opportunity remains significant—but is now realistic.

Understanding SOM

Serviceable Obtainable Market

SOM is the most important number in case competitions.

It estimates the portion of SAM the organization can realistically capture during the planning horizon.

It reflects:

competition
brand awareness
marketing capability
production capacity
customer switching behaviour
expected adoption rates

This is no longer theoretical.

Example

Suppose:

SAM = $180 million

Expected market share after five years = 4%

SOM

= $7.2 million annually

Notice how much more believable this estimate becomes.

Instead of claiming hundreds of millions of dollars in immediate revenue, the recommendation demonstrates a practical understanding of market dynamics.

Building the Story

TAM, SAM and SOM should never appear as isolated numbers.

They should tell a logical business story.

Opportunity

↓

Accessibility

↓

Competitive Reality

↓

Financial Expectations

When judges understand this progression, your recommendation immediately becomes more credible.

Top-Down and Bottom-Up Approaches

There are two common ways to estimate markets.

Top-Down

Start with the total market.

Gradually narrow it.

This approach is quick and often useful in competitions.

Bottom-Up

Begin with realistic operational assumptions.

For example:

customers per day
average transaction value
operating locations
annual operating days

Multiply upward.

Bottom-up estimates often appear more realistic because they connect directly to operational capacity.

Whenever possible, use both approaches to validate one another.

Presenting Market Size

Avoid overwhelming judges with complicated tables.

Simple visuals communicate far more effectively.

Good presentations include:

funnel diagrams
stacked bar charts
segmented market diagrams
clean tables showing assumptions

Every visual should answer one question:

Why do we believe these numbers?

Common Assumptions

Typical assumptions include:

population
demographic segments
average spending
adoption rates
conversion percentages
customer retention
annual growth
pricing

State assumptions clearly.

Judges will rarely challenge reasonable assumptions that are transparent.

Hidden assumptions create uncertainty.

Discover Your Mad Skills Principle

Market sizing is not about proving your recommendation is large. It is about proving your recommendation is believable.

Credibility always beats optimism.

Coach's Lens

Many competitors proudly present billion-dollar TAMs.

Experienced judges immediately become skeptical.

Ask yourself:

"If I were investing my own money, would I believe this?"

If the answer is no, revise your assumptions.

Deciphering Cases

One of the defining characteristics of strong case competitors is their ability to separate possibility from probability.

Anything is possible.

Only some outcomes are probable.

TAM measures possibility.

SAM measures capability.

SOM measures probability.

The best recommendations are built around the probable—not the possible.

Common Mistakes

Avoid these common errors:

confusing TAM with SOM
assuming unrealistic market share
ignoring competitors
using outdated market data
failing to explain assumptions
presenting large numbers without context
estimating markets that are too small to justify the recommendation

Mad Skills Drill

Choose a business idea.

Estimate:

Document every assumption.

Now ask another student to challenge those assumptions.

Revise your estimates based on the discussion.

Notice that stronger assumptions usually produce stronger recommendations.

Chapter Summary

Market sizing transforms strategic ideas into financially credible opportunities.

By distinguishing between total opportunity, accessible opportunity and realistically obtainable opportunity, competitors demonstrate the disciplined thinking expected by judges, executives and investors.

The objective is not to predict the future perfectly.

It is to provide a logical, evidence-based estimate that supports strategic decision-making.

Key Takeaways

✓ TAM measures the total market opportunity.

✓ SAM narrows the opportunity to customers the organization can realistically serve.

✓ SOM estimates what the organization can realistically capture.

✓ Every estimate depends on transparent assumptions.

✓ Credibility is more important than optimism.

✓ Market sizing provides the financial foundation for every strategic recommendation.

Looking Ahead

Market sizing tells us how large the opportunity could be.

The next challenge is determining whether those estimates make financial sense.

In the next chapter, we will develop rapid estimation techniques that allow competitors to build realistic financial assumptions even when limited information is available.

Chapter 6 Financial Estimation

Making Smart Assumptions Under Pressure

Learning Objectives

By the end of this chapter you should be able to:

understand the role of estimation in case-solving
develop reasonable assumptions when data is limited
estimate markets, revenues, costs, and operational capacity
use estimation to test the feasibility of recommendations
communicate assumptions with confidence
recognize the difference between precision and credibility

Why This Matters

Business cases are intentionally incomplete.

You are rarely given every number you need.

Judges know this.

Executives know this.

Consultants know this.

One of the defining characteristics of effective decision-makers is the ability to make informed estimates when perfect information is unavailable.

Case competitors face exactly the same challenge.

Should the company open twenty stores?

How much will implementation cost?

How many customers will adopt the new product?

How much additional revenue could be generated?

Very few cases provide these answers directly.

Instead, they provide clues.

Your job is to develop reasonable assumptions, perform logical calculations, and communicate your thinking clearly.

Remember:

An estimate supported by sound reasoning is far more valuable than a precise number built on unrealistic assumptions.

Estimation Is Executive Thinking

Executives make decisions every day with incomplete information.

Consultants rarely begin with detailed spreadsheets.

They begin with rough calculations.

They ask:

Before spending an hour building financial models, successful teams perform quick "back-of-the-envelope" estimates.

These early calculations often prevent major mistakes later.

The Estimation Process

Good estimation follows a simple process.

Start with the question.

↓

Identify the key drivers.

↓

Make reasonable assumptions.

↓

Calculate using simple numbers.

↓

Test whether the answer is realistic.

↓

Refine if necessary.

Notice that estimation is iterative.

The first estimate is rarely the final estimate.

Step One

Define the Question

Every estimate begins with a clear objective.

Examples include:

How many customers exist?
What is the market size?
How much will implementation cost?
How many employees are required?
How much inventory is needed?
What revenue could realistically be generated?

A poorly defined question almost always produces a poor estimate.

Step Two

Break Large Problems into Smaller Pieces

Large numbers are intimidating.

Smaller numbers are manageable.

Suppose you want to estimate daily railway ticket sales in China.

Rather than guessing four million tickets per day, break the problem into logical steps.

Ask:

What is the population?
How many people regularly travel?
How often do they travel?
How many tickets does each trip require?

Multiply the assumptions together.

Large estimates become surprisingly manageable when divided into smaller questions.

Example: Estimating Railway Ticket Sales

Suppose:

Population = 1.4 billion

Approximately 40% travel regularly by rail

Average traveller makes two return trips per year

Each return trip requires two tickets.

The calculation becomes:

1.4 billion

40%

4 tickets annually

2.24 billion tickets annually

Divide by 365.

Approximately 6.1 million tickets per day.

Will this number be exact?

No.

Is it logical?

Yes.

That is the objective.

Step Three

State Your Assumptions Clearly

Judges are remarkably forgiving when assumptions are transparent.

Instead of saying,

"Our revenue will increase by 18%."

Explain:

"We estimate 18% growth based on historical industry growth of approximately 12%, combined with projected customer acquisition from our new distribution strategy."

Assumptions should always answer the question:

Why do we believe this number?

Step Four

Use Round Numbers

Precision often creates the illusion of accuracy.

Early estimates should be simple.

Instead of:

$4,987,342

Estimate:

$5 million.

Instead of:

8.37%

Estimate:

8%.

Simple numbers are easier to explain and much easier to adjust later.

Estimating Revenue

Revenue estimation usually follows the same structure.

Revenue

Customers

Purchase Frequency

Average Selling Price

For example:

10,000 customers

3 purchases annually

$120 average sale

$3.6 million annual revenue

This simple framework works for almost every industry.

Estimating Costs

Cost estimation follows a similar approach.

Separate costs into categories.

One-time costs

equipment
software
implementation
consulting

Ongoing costs

salaries
maintenance
marketing
administration

Breaking costs apart improves credibility.

It also prepares the team for budgeting in the next chapter.

Diagnosing Problems Through Estimation

Estimation is not only used for forecasting.

It can also identify underlying business problems.

Imagine a hardware retailer whose profits suddenly decline.

Rather than assuming costs increased, estimate the components of profit.

Profit

Revenue

−

Costs

Revenue

Price × Quantity

Costs

Fixed Costs + Variable Costs

Now ask:

What changed?

Price?

Sales volume?

Product mix?

Operating costs?

This structured thinking quickly narrows the possible explanations.

Often, the issue is not declining sales but a shift toward lower-margin products.

Estimation helps uncover that insight.

Reality Checks

Every estimate deserves a reality check.

Ask:

Does this recommendation fit the organization's size?

Would operations support this level of growth?

Does this estimate exceed industry norms?

Would an investor believe these assumptions?

If the answer is "probably not," revisit the assumptions.

Discover Your Mad Skills Principle

Great estimators are not trying to be exactly right. They are trying to avoid being obviously wrong.

Business decisions rarely require perfect numbers.

They require reasonable confidence.

Coach's Lens

One of the biggest mistakes I see is teams hiding their assumptions.

They simply present the final number.

Experienced judges immediately ask:

"Where did that come from?"

Instead, explain your assumptions before presenting the calculation.

Transparency builds credibility.

Deciphering Cases

Cases are designed to reward logical reasoning.

Missing information is rarely an obstacle.

It is an invitation to think.

Successful competitors learn to separate facts from assumptions.

Facts come from the case.

Assumptions fill the gaps.

Strong recommendations clearly distinguish between the two.

Common Mistakes

Avoid these common errors:

guessing without explaining assumptions
using unrealistic growth rates
confusing precision with accuracy
ignoring operational capacity
forgetting to test the estimate
presenting unsupported numbers
assuming judges will accept unexplained calculations

Mad Skills Drill

Choose a local business.

Estimate:

annual customers
annual revenue
staffing requirements
operating costs

Write down every assumption.

Now ask yourself:

Which assumptions have the greatest impact on the result?

Those assumptions deserve the greatest attention during your presentation.

Chapter Summary

Financial estimation is one of the most valuable skills in business case competitions.

It allows competitors to evaluate opportunities, test recommendations, and build credible financial arguments even when information is incomplete.

Successful estimators are not rewarded because their numbers are perfect.

They are rewarded because their reasoning is sound.

Key Takeaways

✓ Estimation is a structured thinking process, not educated guessing.

✓ Break large problems into smaller, manageable components.

✓ Clearly communicate assumptions.

✓ Use round numbers during early analysis.

✓ Test every estimate against operational reality.

✓ Logical reasoning is more valuable than false precision.

Looking Ahead

Estimating the opportunity tells us what could happen.

The next step is determining what it will cost.

In the next chapter, we will build realistic implementation budgets that connect strategic recommendations to financial feasibility, ensuring every recommendation is supported by a credible investment plan.

Chapter 7 Building Realistic Budgets

Connecting Strategy to Financial Reality

Learning Objectives

By the end of this chapter you should be able to:

understand the purpose of implementation budgets
estimate project costs using reasonable assumptions
distinguish between one-time and ongoing costs
scale budgets appropriately for different organizations
justify financial assumptions using benchmarks
present budgets clearly and professionally
use budgets to strengthen strategic recommendations

Why This Matters

One of the quickest ways to undermine an excellent recommendation is to ignore what it will cost.

Many teams spend hours developing innovative strategies, designing implementation plans, and creating polished presentations. Then, when judges ask, "How much will this cost?", they have no answer.

Others include a budget, but it bears little relationship to the size of the organization or the recommendation itself.

An implementation budget is far more than a list of expenses.

It demonstrates that your team has considered the practical realities of execution.

It shows that your recommendation is not only strategically attractive but financially feasible.

Every recommendation requires resources.

Your job is to demonstrate that those resources have been thoughtfully considered.

Budgeting Is About Credibility

Executives rarely ask whether an idea is good.

They ask whether it is worth the investment.

A realistic budget answers questions such as:

How much capital is required?
What operating costs will increase?
What savings will offset those costs?
When will expenditures occur?
Can the organization realistically afford this initiative?

Budgets transform ideas into investment decisions.

Every Recommendation Needs a Budget

Whether your recommendation involves:

launching a new product
implementing new technology
entering a new market
opening additional locations
acquiring another company
expanding production capacity

someone must pay for it.

Even recommendations involving policy or organizational change usually require investment in:

training
communications
technology
project management
consulting
recruitment
monitoring and evaluation

Ignoring these costs reduces credibility.

Start with the Scope

Before estimating costs, define exactly what the recommendation includes.

Ask yourself:

What activities are required?
What resources will be needed?
How long will implementation take?
Who will be responsible?
What must happen first?

A clear implementation plan naturally leads to a realistic budget.

Separate One-Time and Ongoing Costs

One of the easiest ways to improve a budget is to separate costs into two categories.

One-Time Costs

These are investments required to launch the initiative.

Examples include:

software development
equipment purchases
consulting fees
employee training
facility renovations
implementation support

These costs occur once.

Ongoing Costs

These continue throughout the life of the recommendation.

Examples include:

salaries
maintenance
subscriptions
marketing
customer support
utilities
software licensing

Separating these categories helps executives understand both the initial investment and the long-term financial commitment.

Scale Matters

One of the biggest budgeting mistakes in case competitions is poor scaling.

A recommendation that costs $100 million may be entirely reasonable for a multinational airline.

The same recommendation would bankrupt a regional manufacturer.

Likewise, proposing a $50,000 investment for a Fortune 500 company may be too small to have any meaningful strategic impact.

Always ask:

Is this investment material enough to matter?

and

Is it realistic for this organization?

The best budgets are proportional to the organization's size, financial capacity, and strategic objectives.

Using Industry Benchmarks

Cases rarely provide detailed cost information.

That is where benchmarks become valuable.

Examples include:

IT spending as a percentage of revenue
Marketing expenditure as a percentage of sales
Average employee salaries
Warehouse construction costs
Manufacturing costs per unit
Customer acquisition costs
Industry implementation timelines

Benchmarks provide logical starting points when exact information is unavailable.

Remember to explain your assumptions during the presentation.

Transparency builds trust.

Building the Budget

A practical implementation budget often includes:

Category	One-Time	Annual
Technology	✓	✓
Equipment	✓
Training	✓
Marketing		✓
Salaries		✓
Maintenance		✓
Consulting	✓
Contingency	✓	✓

This structure allows judges to quickly understand where the money will be spent.

Keep the presentation simple.

Budgets should support the recommendation—not overwhelm it.

Linking Costs to Benefits

A budget should never stand alone.

Every major expenditure should answer one question:

What value does this investment create?

For example:

An online booking platform may require a $10 million investment.

Rather than presenting only the cost, explain:

increased customer convenience
reduced staffing costs
higher booking conversion rates
improved customer retention
long-term operating efficiencies

Budgets become far more persuasive when costs are paired with expected benefits.

Presenting Budgets Visually

Executives rarely want detailed spreadsheets.

Instead, use:

summary tables
stacked bar charts
implementation timelines
cost breakdown diagrams
waterfall charts

Keep visuals clean.

Avoid excessive decimal places.

Round large numbers where appropriate.

The audience should understand the financial story within seconds.

Financial Storytelling

Every budget tells a story.

Consider two presentations.

Presentation A

"This initiative costs $12.5 million."

Presentation B

"This initiative requires a one-time investment of $8 million in technology and implementation, followed by annual operating costs of $4.5 million. These investments are expected to reduce operating expenses by approximately $7 million annually, resulting in a positive financial contribution within three years."

Which presentation sounds more credible?

The numbers may be identical.

The story is very different.

Discover Your Mad Skills Principle

Budgets don't justify recommendations. They demonstrate that your recommendation is executable.

Anyone can propose ambitious ideas.

Winning teams prove they have considered the financial realities of implementation.

Coach's Lens

One of the comments I hear most often from judges is:

"Their recommendation sounded interesting, but I had no idea what it would actually cost."

Don't make judges ask that question.

A simple, well-structured budget often creates more confidence than pages of detailed financial calculations.

Remember:

The purpose of the budget is not to impress people with arithmetic.

It is to reassure them that implementation has been carefully planned.

Deciphering Cases

Financial feasibility is one of the hidden puzzles within every business case.

A recommendation may be strategically attractive but financially impossible.

Or it may be financially affordable but too small to create meaningful impact.

Strong competitors continually ask:

Can this organization afford the recommendation?
Is the investment proportional to the opportunity?
Does the expected return justify the expenditure?

These questions separate realistic recommendations from optimistic ideas.

Common Mistakes

Avoid these common budgeting errors:

forgetting to include implementation costs
ignoring ongoing operating expenses
failing to separate one-time and recurring costs
proposing investments that are unrealistic for the organization
presenting unsupported assumptions
focusing only on costs without discussing benefits
overwhelming judges with unnecessary detail

Mad Skills Drill

Choose a recommendation from a previous case competition.

Develop a one-page implementation budget.

Include:

one-time costs
ongoing annual costs
major assumptions
expected financial benefits
implementation timeline

Now ask yourself:

Would a CEO approve this investment based solely on the information provided?

If not, identify what information is missing.

Chapter Summary

A well-designed budget transforms a recommendation from an interesting idea into a credible business proposal.

By estimating costs realistically, scaling investments appropriately, and connecting expenditures to expected benefits, competitors demonstrate the executive thinking judges expect to see.

Budgets are not accounting exercises.

They are strategic communication tools that help decision-makers understand the financial implications of action.

Key Takeaways

✓ Every recommendation requires a realistic implementation budget.

✓ Separate one-time investments from ongoing operating costs.

✓ Scale budgets to the size and financial capacity of the organization.

✓ Use industry benchmarks to support assumptions.

✓ Connect every major cost to an expected benefit.

✓ Present budgets simply, clearly, and visually.

✓ A budget should increase confidence in your recommendation—not distract from it.

Looking Ahead

Once we understand the cost of a recommendation, the next question becomes:

Will the investment create sufficient value?

In the next chapter, we will explore investment evaluation, introducing ROI, NPV, IRR, and sensitivity analysis—the financial tools executives use to compare alternatives and make informed investment decisions.