Book Review: Extreme Ownership

15 Mar 2026

Software projects are almost always executed in teams.

When you work in a great team, it’s one of the most enjoyable aspects of the job. But when teams don’t function well, the amount of friction can be enormous.

A key factor behind great teams is great technical leadership.

Good tech leads are not only strong in technical topics. More importantly, they need leadership skills.

In that regard, military teams and software teams are not so different. Both operate under pressure, must coordinate complex work, and rely heavily on trust and clear communication.

If you want to understand what truly matters in leadership, this book is an excellent resource.

That’s why I picked this book, and if you are a tech lead - or want to become one - I highly recommend reading it.

Extreme Ownership: How U.S. Navy SEALs Lead and Win

The book presents 12 principles to “lead and win.”

Each chapter follows the same structure:

A story from Navy SEAL operations in Iraq that sets the stage for the principle and helps build an intuitive understanding of why it matters.
If you are not interested in the military details, these sections can be read quickly.

The principle section then explains the core idea.

Finally, the business section shows how the principle applies in organizations and teams.

Here are the 12 leadership principles from the book.

1. Extreme Ownership

The leader must own everything in his or her world.

Leaders must take full responsibility for everything in their team’s results. There are no excuses and no blaming others. When leaders own failures, they can fix the real problems.

2. No Bad Teams, Only Bad Leaders

When it comes to standards, as a leader, it’s not what you preach, it’s what you tolerate.

Team performance reflects leadership quality. If a team fails, the leader must change the approach rather than blame individuals. Good leadership can turn around even poorly performing teams.

3. Believe

In order to convince and inspire others to follow and accomplish a mission a leader must be a true believer in the mission.

Leaders must truly believe in the mission. If they don’t, they cannot convincingly communicate it to the team. Understanding the “why” is essential to gain commitment.

4. Check the Ego

Ego prevents learning, collaboration, and effective decision-making. Leaders must stay humble and open to feedback. Mission success is more important than personal pride.

5. Cover and Move

Teams must support and protect each other to succeed. Success depends on collaboration between units rather than isolated efforts. The entire organization must work as one team.

6. Simple

And when things go wrong — and they inevitably do — complexity compounds issues that can spiral out of control into total disaster.

Plans must be simple and easy to understand. Complexity creates confusion and increases the risk of failure. Clear and straightforward plans improve execution.

7. Prioritize and Execute

“Relax, look around, make a call.”

When multiple problems arise, leaders must focus on the most critical one first. Solve issues step by step instead of becoming overwhelmed. Calm prioritization enables effective action in chaos.

8. Decentralized Command

Every tactical-level team leader must understand not just what to do but why they are doing it.

Decision-making authority should be pushed down to leaders closest to the problem. Everyone must understand the mission well enough to act independently. This creates speed, flexibility, and resilience.

9. Plan

Leaders must carefully plan missions and involve key team members in the process. Clear communication of the plan ensures everyone understands their role. Preparation reduces uncertainty and improves execution.

10. Leading Up and Down the Chain of Command

Leaders must manage relationships with both superiors and subordinates. If higher leadership doesn’t understand something, it’s the leader’s responsibility to explain it clearly. Ownership extends both upward and downward.

11. Decisiveness Amid Uncertainty

There is no 100 percent right solution. The picture is never complete.

Leaders must make decisions even when information is incomplete. Waiting for perfect certainty often leads to missed opportunities. Timely action is usually better than hesitation.

12. Discipline Equals Freedom

Discipline in planning, training, and execution creates freedom in operations. Consistent discipline reduces chaos and improves performance. The more disciplined the team, the more effectively it can operate.

Final Thoughts

While reading the book, I could immediately relate many of the principles to my daily work.

If you take a fresh look at how your team operates,
I’m pretty sure you’ll recognize some of the same patterns.

And that’s a good place to start improving.