Good Strategy Bad Strategy — Summary & Key Lessons

💡 The Big Idea

Richard Rumelt — called 'the man who made strategy interesting' by McKinsey — analyzed thousands of real strategies and found most are empty: goals, budgets and vision statements dressed up as strategy. Real strategy has a structure he calls the kernel: a diagnosis of the true nature of the challenge, a guiding policy for dealing with it, and coherent actions that follow. Strategy is about focus, leverage and hard choices — not slogans.

Lesson 1: The Kernel: Diagnosis → Policy → Action

Good Strategy

Every good strategy contains three elements: a diagnosis (what is really going on? what is the true nature of the challenge?), a guiding policy (the overall approach — what we will and won't do), and coherent actions (steps that actually follow from the policy). Miss any one and you have a slogan, not a strategy.

📖 Example: Rumelt's model case: a small auto parts company on the brink of collapse diagnosed its real problem (chaotic product line bleeding cash), chose a guiding policy (cut everything except the profitable core), and executed — surviving while bigger rivals failed. Read the full example →

⚡ Do this: Write your current strategy in three lines: 'The challenge is… Our approach is… Therefore we will…' If you can't, you don't have a strategy yet.

Lesson 2: Bad Strategy Is Fluff

Bad Strategy

Bad strategy wears disguises: grand visions ('we will be the global leader in X'), fluffy values, and wishful goals with no plan. Rumelt's diagnosis: these are not strategy but 'strategic decoration' — usually created to avoid the hard work of diagnosis and the pain of choice. If a strategy doesn't say what you will NOT do, it is not a strategy.

📖 Example: A Fortune 500 firm's 'strategy' Rumelt quotes: 'We will leverage our core competencies to maximize shareholder value.' It says nothing — no diagnosis, no policy, no action. Contrast with Toyota's early strategy: 'build small, reliable cars for a fuel-short… Read the full example →

⚡ Do this: Highlight every vague word in your plan (lever, synergize, world-class). Rewrite the plan with concrete nouns and numbers — or admit you don't have a plan.

Lesson 3: Find the Crux

Diagnosis

Complex problems are not solved wholesale — they are solved by finding the crux: the pivotal challenge whose solution unlocks everything else. Rumelt's advice: resist the urge to fix everything; spend the effort identifying which 20% of the problem, if solved, makes the rest tractable. Good diagnosticians think in hypotheses and test them.

📖 Example: When the US faced the polio crisis, the crux wasn't more clinics or public campaigns — it was a vaccine. Salk focused all energy there and the rest of the problem collapsed. Similarly, a struggling startup's crux is usually one thing: distribution, not… Read the full example →

⚡ Do this: List your top 10 problems. Ask of each: 'If this were solved, how many others would shrink?' Attack the problem that unlocks the most.

Lesson 4: Use Leverage

Leverage

Leverage means getting disproportionate results from focused effort: concentrating resources on a pivotal objective, using an advantage (position, technology, timing) to amplify effort, and creating chain reactions where one success feeds the next. Strategy is not about doing more — it is about doing the few things that multiply.

📖 Example: Rumelt's lever example: Southwest Airlines concentrated on one insight — fast turnarounds. Everything (standardized fleet, no meals, point-to-point routes) amplified that single advantage, producing cost per seat mile no rival matched for decades. Read the full example →

⚡ Do this: Find your one multiplier: the single advantage you can build that makes every other effort easier. Name it, and cut one activity that doesn't feed it.

Lesson 5: Think in Chains

Anticipation

Good strategists think several moves ahead — not because they can predict the future, but because they anticipate reactions. Rumelt calls it thinking in chains: if I do X, they will respond with Y, which enables Z. This second-order thinking is rare because it's slow and uncomfortable — but it's where the edge lives.

📖 Example: When one airline raises prices, rivals discount; when a startup enters a market, incumbents bundle. Rumelt's case: the company that launched a new product AND pre-emptively prepared its counter to the incumbent's inevitable price cut — winning the war before… Read the full example →

⚡ Do this: Before your next big move, write the chain: 'If we do X, then ___ will likely do Y, so we should prepare Z.' Repeat it twice.

Lesson 6: Strategy Is Diagnosis, Policy, and Action — Not Goals

The Kernel of Strategy

Rumelt defines real strategy as a kernel of three parts: a diagnosis of the challenge, a guiding policy for approaching it, and a set of coherent actions. Goals without this kernel ('we will grow 20%') are not strategy — they are wishes. The diagnosis is the hardest and most skipped part.

📖 Example: A struggling business that says 'we must increase sales' lacks strategy; one that diagnoses 'our distribution is dying, our product is fine' and policies 'double down on direct channels' with specific actions has a kernel. The first gets slogans; the second… Read the full example →

⚡ Do this: Write your current challenge as a one-sentence diagnosis, a one-sentence policy, and three concrete actions — and test whether all three fit together.

✅ 5-Step Action Plan

1. Write your strategy in 3 lines: challenge, approach, action.
2. Strip the fluff — replace every vague word with nouns and numbers.
3. Find your crux: the one problem whose solution unlocks the rest.
4. Name your single multiplier and cut what doesn't feed it.
5. Think in chains: map the reaction to your next move, and pre-plan the counter.

💬 Best Quotes from Good Strategy Bad Strategy

• “Strategy is the craft of figuring out which purposes are worth pursuing and what is required to achieve them.”
• “Good strategy works by focusing energy and resources on one, or a very few, pivotal objectives.”
• “Fluff is a form of restatement of the obvious combined with a sprinkling of buzzwords.”

📚 Related Power & Strategy Summaries

• The 48 Laws of Power — Robert Greene
• The Art of Seduction — Robert Greene
• Never Split the Difference — Chris Voss