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Good to Great
Why Some Companies Make the Leap
Jim Collins
Business & Leadership

Good to Great: Why Some Companies Make the Leap and Others Don't

by Jim Collins

10 min read Updated Dec 2026 Business Strategy

Key Takeaways

  • Level 5 Leadership is essential. Every good-to-great company had a leader who combined extreme personal humility with intense professional will. They're ambitious for the company, not themselves.
  • First Who, Then What. Great companies first get the right people on the bus (and the wrong people off), then figure out where to drive it. People before strategy.
  • Confront the Brutal Facts. You must maintain unwavering faith that you will prevail while confronting the most brutal facts of your current reality—the Stockdale Paradox.
  • The Hedgehog Concept. Great companies focus on the intersection of three circles: what you can be the best at, what drives your economic engine, and what you're deeply passionate about.
  • The Flywheel Effect. Transformation isn't a single dramatic event—it's pushing a giant flywheel, turn after turn, until momentum kicks in and breakthrough happens.

Why Good Is the Enemy of Great

"Good is the enemy of great." That's the opening line of Jim Collins's landmark 5-year research study. Most companies never become great precisely because they become good—and good is enough.

Collins and his research team analyzed 1,435 Fortune 500 companies over 40 years. Only 11 made the leap from good to great—achieving cumulative stock returns 6.9 times greater than the general market over 15 years. What did these 11 companies do differently?

"Good is the enemy of great. And that is one of the key reasons why we have so little that becomes great."
— Jim Collins, Good to Great

The answers weren't what anyone expected. It wasn't celebrity CEOs, cutting-edge technology, or big acquisitions. It was a disciplined set of principles that any organization can apply: Level 5 Leadership, First Who Then What, Confronting Brutal Facts, the Hedgehog Concept, a Culture of Discipline, and the Flywheel Effect.

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Level 5 Leadership: The X-Factor

Every good-to-great transformation began with a Level 5 Leader at the helm. These leaders possess a paradoxical blend that sets them apart: extreme personal humility combined with intense professional will.

Personal Humility

Level 5 leaders are often self-effacing, quiet, and reserved. They deflect praise to others and external factors when things go well. They never boast and never seek celebrity status. They're ambitious primarily for the company—not for themselves.

Professional Will

Yet beneath the humility lies an unwavering resolve. Level 5 leaders will do whatever it takes to make the company great. They set up successors for success, not failure. And when things go badly, they look in the mirror—not out the window.

"Level 5 leaders channel their ego needs away from themselves and into the larger goal of building a great company. It's not that Level 5 leaders have no ego or self-interest. Indeed, they are incredibly ambitious—but their ambition is first and foremost for the institution, not themselves."
— Jim Collins

The Window and the Mirror

Level 5 leaders look out the window to give credit when things go well—to other people, external factors, and even luck. But they look in the mirror when things go poorly, taking full responsibility without blaming others or bad luck. This pattern is the opposite of what comparison CEOs did.

First Who, Then What

Good-to-great leaders didn't start by setting a new direction. They started by getting the right people on the bus, the wrong people off the bus, and the right people in the right seats.

People Before Strategy

This principle runs counter to conventional wisdom. Most think you should set a vision first, then find the people to execute it. But Collins found the opposite: if you have the right people, they'll figure out the right direction.

  • If you have the wrong people, it doesn't matter if you have the right direction—you still won't have a great company
  • If you have the right people, they're self-motivated and will drive toward the best results
  • Great vision without great people is irrelevant

Rigorous, Not Ruthless

Good-to-great companies were rigorous in their people decisions, but not ruthless. They didn't fire people without thinking. They made sure to spend their best time on their best opportunities, not their biggest problems.

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Confront the Brutal Facts (The Stockdale Paradox)

All good-to-great companies began their transformation by confronting the brutal facts of their current reality. Not hoping for the best, not spinning the narrative—facing the cold, hard truth.

The Stockdale Paradox

Named after Admiral Jim Stockdale, the highest-ranking US military officer in a Vietnam prisoner-of-war camp, this paradox captures a critical balance:

"You must maintain unwavering faith that you can and will prevail in the end, regardless of the difficulties, AND at the same time, have the discipline to confront the most brutal facts of your current reality, whatever they might be."
— Admiral Jim Stockdale

The optimists in the camp—those who said "We'll be out by Christmas"—were the ones who died of broken hearts. Stockdale survived because he balanced faith with reality.

Creating a Climate for Truth

Good-to-great companies created cultures where people could speak the truth without fear:

  • Lead with questions, not answers
  • Engage in dialogue and debate, not coercion
  • Conduct autopsies without blame
  • Build "red flag" mechanisms to surface problems

The Hedgehog Concept: Simplicity Within Three Circles

Good-to-great companies all discovered a simple, crystalline concept that guided their decisions. Collins calls it the Hedgehog Concept—named after Isaiah Berlin's famous essay: "The fox knows many things, but the hedgehog knows one big thing."

The Three Circles

The Hedgehog Concept lives at the intersection of three fundamental questions:

  • What can you be the best in the world at? Not what you want to be best at, but what you genuinely have the potential to be better at than any other company.
  • What drives your economic engine? What is the single denominator (profit per X) that has the greatest impact on your economics?
  • What are you deeply passionate about? Great companies focus on activities that ignite passion. You can't manufacture passion; you can only discover what you're passionate about.
"A Hedgehog Concept is not a goal to be the best, a strategy to be the best, an intention to be the best, a plan to be the best. It is an understanding of what you CAN be the best at."
— Jim Collins

The key is deep understanding, not bravado. Comparison companies often set audacious goals without the understanding to back them up. Good-to-great companies patiently worked to understand their three circles.

Culture of Discipline

Good-to-great companies built a culture of discipline—but it's not what you might think. Discipline in this context means self-disciplined people who engage in disciplined thought and take disciplined action.

Freedom Within a Framework

Great companies hire self-disciplined people who don't need to be managed. They give them freedom and responsibility within a framework—the Hedgehog Concept. When you have disciplined people, you don't need hierarchy. When you have disciplined thought, you don't need bureaucracy. When you have disciplined action, you don't need excessive controls.

The "Stop Doing" List

Most people and companies have long "to-do" lists. Good-to-great companies also develop "stop doing" lists—activities that fall outside the three circles of the Hedgehog Concept. They have the discipline to say "no" to big opportunities if they don't fit.

The Flywheel Effect

There was no single defining moment for the good-to-great transformations. Instead, it was like pushing a giant, heavy flywheel—one push at a time, building momentum until breakthrough.

Buildup and Breakthrough

From the outside, transitions look like dramatic overnight transformations. From the inside, they feel like organic evolution. There's no single "miracle moment"—just consistent effort in a consistent direction, turn after turn.

  • Push the flywheel consistently in one direction
  • Each turn builds upon previous work
  • Momentum accumulates over time
  • Eventually, breakthrough happens naturally

The Doom Loop

Comparison companies often fell into the "Doom Loop"—lurching back and forth with new programs, new leaders, and new directions, never building sustained momentum. Consistency and patience, guided by the Hedgehog Concept, beats reactive change.

"No matter how dramatic the end result, the good-to-great transformations never happened in one fell swoop. There was no single defining action, no grand program, no one killer innovation, no solitary lucky break, no miracle moment."
— Jim Collins

Final Thoughts: Greatness Is a Choice

The most powerful insight from Good to Great is that the factors that determine greatness are largely within your control. It's not about industry conditions, company size, or luck. It's about disciplined people, disciplined thought, and disciplined action.

The principles in this book aren't just for Fortune 500 companies. They apply to teams, non-profits, schools, and even personal development. The question is not "Can we become great?" but "Do we have the will to become great?"

Start today: Who are the right people on your bus? What brutal facts are you avoiding? What could you be the best in the world at? As Collins reminds us, the path from good to great begins with a single push of the flywheel.

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