How to Diagnose Your Business Through the Lenses of 4 World-Class Strategists

Everyone says "you need a strategy." But once you actually sit down at your desk, it is hard to know where to start. Large companies solve this with 'frameworks' — they look at the same situation through 4 lenses.

A strategy framework is not a tool that hands you the right answer. It is a checklist that keeps you from skipping questions. Half of what consulting firms charge hundreds of millions of won for is, in fact, "making you look at the boxes you have not looked at."

Today I will condense the signature frameworks of 4 world-class strategists into questions a solo founder can use right away. Try putting your own business through each lens.

Lens 1. Michael Porter — "The Five Forces" (the structure of profit)

Porter argued that an industry's profitability is determined by 5 forces: new entrants, substitutes, supplier bargaining power, buyer bargaining power, and existing rivalry.[^1]

Scaled down for a solo founder, the core comes down to two.

• Barriers to entry: Could someone copy exactly what you do within a month? If so, you will get dragged into price competition.
• Buyer bargaining power: Can your customers say "we don't need you specifically"?

Diagnostic question: What is the one thing only you can offer in your business? If there is nothing, that is your first strategic task.

Lens 2. Clayton Christensen — "Disruptive Innovation" (where to start)

Christensen explained why big companies lose to small ones. Large companies focus only on their 'best customers' and miss the challengers rising from below with a 'good-enough, cheaper alternative.'[^2]

For a solo founder, this is a map of opportunity. We can start in the 'small, demanding markets' that large companies ignore.

Diagnostic question: Among the areas where big companies say "that market is too small for us," where could you dig deep?

Lens 3. Richard Rumelt — "Good Strategy vs. Bad Strategy"

Rumelt said that most 'strategies' are not actually strategies. Something like "double our revenue" is a goal, not a strategy. A good strategy has three parts.[^3]

1. Diagnosis: What is the real problem? (the cause, not the symptom)
2. Guiding policy: How will you approach that problem?
3. Action: A set of coherent actions

Most business plans fall apart at step 1. If you frame the problem as "sales aren't coming in," you will not find an answer. You need to narrow it down, like "there are no repeat purchases" or "the path to the first payment is too long."

Diagnostic question: If you wrote your business's real problem in one sentence, what would it be? Is it a 'cause' rather than a 'symptom'?

Lens 4. The BCG Matrix — "Where will you spend your time?"

BCG divided businesses into 4 boxes along two axes, growth and market share — Stars, Cash Cows, Question Marks, and Dogs. It is a capital allocation tool for large companies, but for a solo founder it is even more powerful as a time allocation tool.[^4]

Our capital is not money; it is time. The more things you have started at once, the more painfully this matrix applies.

• Cash Cow: Brings in money now but will not grow further → keep it, but cut the time you spend
• Star: Brings in money and keeps growing → pour your time in
• Question Mark: Might grow → experiment small, set a deadline
• Dog: Neither makes money nor grows → wind it down

Diagnostic question: Which box holds the work you currently spend the most time on? Are you spending your time on a 'Dog'?

All 4 Lenses at Once — A 30-Minute Self-Diagnosis

Just answer in order.

1. (Porter) What can only you offer? → If nothing, that is your top-priority task
2. (Christensen) What area, ignored by big companies, can you dig deep into?
3. (Rumelt) What is your real problem (the cause, not the symptom)?
4. (BCG) Which box is your time concentrated in right now?

If you can answer all four questions, you already have a clearer strategy than most business plans. If you get stuck on one, that is where your next month should go.

Join the waitlist for the next cohort → A workshop where you apply these 4 lenses directly to your own business.

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Sources (original works)

[^1]: Michael Porter, Competitive Strategy (1980) and "How Competitive Forces Shape Strategy" (1979) — 5 Forces. [^2]: Clayton Christensen, The Innovator's Dilemma (1997) — disruptive innovation. [^3]: Richard Rumelt, Good Strategy Bad Strategy (2011) — the 3 elements of good strategy. [^4]: BCG (Bruce Henderson, 1970) — growth-share matrix.

This article introduces the concepts of established strategy frameworks and makes no separate numerical claims.

Next up: a deep dissection of a single company, Nokia, through the 4 lenses — the real reason a market leader disappeared in 6 years.

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If you would like to look at your own business through these four lenses,
a 2-minute diagnosis can show you where to start structuring first. Feel free to answer only as much as you are comfortable with.

STAR-T AI Business Operations Diagnosis →