Ben Horowitz on Hiring

Co-founder at Andreessen Horowitz

17 insights8 categories2 sourced

Co-founder of Andreessen Horowitz (a16z) and author of 'The Hard Thing About Hard Things.' Former CEO of Opsware who has written the most widely-read frameworks on hiring executives, managing in crisis, and the difference between peacetime and wartime leadership.

“There is no such thing as a great CEO who is great at everything. There are only CEOs whose strengths match what the company needs at this particular moment. The same is true for every executive hire.”
The Hard Thing About Hard Things

Ben Horowitz's hiring philosophy was forged in crisis. As CEO of Opsware, he came within weeks of shutting down the company multiple times. Those experiences taught him that hiring is not about finding people without flaws. It is about finding people whose specific strengths match what the company needs right now.

"Hire for strength, not for lack of weakness. The candidate who is a 9 out of 10 in the one thing you desperately need is a better hire than the one who is a 7 across the board."

His most famous framework divides leadership into peacetime and wartime. A peacetime CEO builds culture, develops people, and expands the business. A wartime CEO makes brutal trade-offs under existential pressure. They require fundamentally different skills, and they are almost never the same person. The mistake most companies make is hiring a peacetime leader when they are at war, or a wartime leader when they are at peace.

"People always ask me the most important quality in a CEO. It depends entirely on whether you're in peacetime or wartime."

When evaluating candidates, Horowitz focuses on war stories. He wants to hear about the hardest decisions, the ones that cost something. Not the decisions that worked out perfectly, but the ones made with incomplete information and significant downside risk. The granularity of the story reveals its authenticity. People who have genuinely been through hard things describe them with specificity: the trade-offs, the missing information, the consequences they accepted.

"Every time I've hired someone primarily because they had no significant weaknesses, they turned out to be mediocre."

For executive hiring, he advocates at least six reference checks per candidate, with at least half being back-channel. Interview performance is theater. References are track record. The pattern across multiple independent data points is the most reliable signal you can get.

Philosophy

Core beliefs about hiring and talent

Horowitz's hiring philosophy was forged in crisis. As CEO of Opsware, he nearly ran the company into the ground multiple times. The lesson: hiring is not about finding people without flaws. It is about finding people whose specific strengths match what the company needs right now, even if they come with significant weaknesses.

There is no such thing as a great CEO who is great at everything. There are only CEOs whose strengths match what the company needs at this particular moment. The same is true for every executive hire.

From 'The Hard Thing About Hard Things.' Horowitz argues that hiring for lack of weakness produces mediocrity.

The Hard Thing About Hard Things

Hire for strength, not for lack of weakness. The candidate who is a 9 out of 10 in the one thing you desperately need and a 4 out of 10 in everything else is a better hire than the candidate who is a 7 out of 10 across the board.

Horowitz's core hiring principle. It runs counter to the instinct to look for well-rounded candidates.

Every time I've hired someone primarily because they had no significant weaknesses, they turned out to be mediocre. Every time I've hired someone because they were world-class at the thing I needed most, they moved the needle, even though they were terrible at other things.

People always ask me what's the most important quality in a CEO. It depends entirely on whether you're in peacetime or wartime. In peacetime, you need a builder. In wartime, you need a warrior. They are almost never the same person.

The peacetime/wartime framework applies to all executive hiring, not just CEO selection.

Hiring Process

How they structure interviews and evaluations

Horowitz advocates a highly structured executive hiring process. Define what you need before you start looking, check references obsessively, and make sure the candidate's strengths match the specific phase of the company. A great peacetime hire can be a terrible wartime hire, and vice versa.

Before you start looking for a candidate, write down the specific outcomes you need this person to achieve in their first 12 months. Be precise. Then evaluate every candidate against those outcomes, not against a generic job description.

Do at least six reference checks per executive candidate, and make sure at least half are back-channel, people you find who worked with the candidate but were not provided as references. The pattern across multiple independent references is the most reliable data you can get.

Interview Questions

Questions they ask candidates

Horowitz's interview questions are designed to reveal how candidates handle ambiguity, conflict, and high-pressure situations. He probes for real examples, not hypotheticals, because he believes the best predictor of future behavior is past behavior under stress.

Tell me about the hardest decision you've made as a leader. Not the one that worked out, the one that cost you something.

Horowitz wants to hear about decisions with real consequences. Easy decisions are not decisions at all.

Describe a time when you had to make a call with incomplete information and significant downside risk. What did you do and why?

Tests comfort with ambiguity and the courage to act when waiting for more data is not an option.

What's the biggest mess you've inherited, and how did you deal with it?

Reveals whether someone has actually operated in difficult conditions, not just thrived in favorable ones.

What They Look For

Traits and signals that excite them

Horowitz looks for people who have been through genuinely hard situations and came out the other side. Not people who avoided problems, but people who faced them directly, made tough calls, and can articulate what they learned.

People who have been through genuinely hard situations and can describe them with specificity and nuance. Not people who avoided problems, but people who faced them directly and made tough calls.

Candidates whose specific strength matches what the company needs right now, even if they have significant weaknesses in other areas. A world-class strength in the right dimension beats well-roundedness.

Dealbreakers

Warning signs that concern them

Candidates who describe smooth, easy career paths with no real adversity. Horowitz is suspicious of anyone who has never had to make a painful decision or lead through crisis, because that means they have never been truly tested.

Smooth, easy career narratives with no real adversity. If someone has never had to make a painful decision or lead through crisis, they have never been truly tested, and you don't know how they'll perform when the pressure comes.

Candidates who describe their decisions in hindsight as obvious. The hardest decisions never feel obvious at the time. If every decision in someone's story was clearly right, they are either embellishing or they never made a genuinely hard call.

Signals to Watch

Subtle cues they pay attention to

How candidates talk about failure. People who have genuinely been through hard things describe them with specificity and nuance. People who are embellishing or avoiding talk in generalities. The granularity of the war story reveals its authenticity.

The granularity of the war story. People who have genuinely been through hard things describe them with specificity: the specific trade-offs, the information they did not have, the consequences they accepted. People who are embellishing talk in generalities.

Frameworks

Mental models and structured approaches

Peacetime CEO vs. wartime CEO. A peacetime CEO optimizes, builds culture, and develops people. A wartime CEO makes hard calls under existential pressure. Different phases demand different leaders. Hire for the phase you are in, not the phase you wish you were in.

Peacetime CEO vs. wartime CEO. In peacetime, a company can focus on expanding, building culture, and developing advantages. In wartime, survival is at stake and the company needs decisive, sometimes uncomfortable leadership. Hire for the phase you are in, not the phase you wish you were in.

Horowitz's most famous framework. It applies to all executive hiring: match the leader to the company's current situation.

The Hard Thing About Hard Things

Interviewer Tips

Practical advice for running interviews

When hiring executives, screen for strength rather than lack of weakness. The best executive you can hire might have glaring flaws. But if their specific strength is what the company needs right now, those flaws are a trade worth making.

Screen for strength rather than lack of weakness. Define the one or two things this role absolutely must deliver, then find the person who is world-class at those things. Accept their weaknesses as the cost of their strength.

Do at least six reference checks per executive candidate, with at least half being back-channel. The pattern across multiple independent references is the most reliable hiring data that exists. Interview performance is theater. References are track record.

Frequently Asked: Ben Horowitz on Hiring

Interview questions Ben Horowitz is known for asking candidates.

Tell me about the hardest decision you've made as a leader. Not the one that worked out, the one that cost you something.+

Horowitz wants to hear about decisions with real consequences. Easy decisions are not decisions at all.

Describe a time when you had to make a call with incomplete information and significant downside risk. What did you do and why?+

Tests comfort with ambiguity and the courage to act when waiting for more data is not an option.

What's the biggest mess you've inherited, and how did you deal with it?+

Reveals whether someone has actually operated in difficult conditions, not just thrived in favorable ones.

Hire like Ben Horowitz?

Generate a custom interview process inspired by their approach

Generate Interview Process