Skills Vs. Behaviors: What Actually Predicts A Good Hire?

In brief

Skills tell you whether someone can do the job. Behaviors tell you how they’ll do it at your company.
Most hiring processes test skills well and guess at behaviors.
You need both, but the behavior side is where most bad hires slip through.

Think about the last hire who didn’t work out. Chances are, they could do the work. They had the experience, the résumé and the right answers to the technical questions.

What went wrong was how they did the work. How they handled pressure, treated their team, made decisions or took feedback. That’s the difference between skills and behaviors, and most hiring processes are only built to see one of them.

A: Skills

What they are: the knowledge and abilities the job requires. Running payroll, writing code, operating equipment, managing a budget, closing a sale.

How companies assess them: résumés, certifications, technical interviews, work samples, skills tests.

What they predict: whether someone can do the job.

Why companies lean on them: skills are easy to see. You can test them, check them and compare candidates side by side. For most companies, this is the half of hiring they already do well.

What they miss: skills say nothing about how someone will work with your people, under your pressure, in your culture.

B: Behaviors

What they are: the specific, visible actions someone takes while doing the work. How they share information, handle a mistake, push back on a decision or treat a customer who’s upset.

How companies assess them: by asking candidates for real examples and listening for what they actually did. Not “I’m a great communicator,” but what they said, to whom, and what happened next.

What they predict: how someone will do the job at your company. Whether the way they work matches the way work gets done there.

Why companies skip them: behaviors are harder to see in an interview, and most companies have never described the behaviors they need. So interviewers fall back on a gut feeling and call it fit. I explain why that backfires in how to hire for a culture you’ve named.

Side by side

What it tells you: skills tell you if they can do the job. Behaviors tell you how they’ll do it here.
How you see it: skills show up in tests and work samples. Behaviors show up in real examples from past work.
When the gap shows up: a skills gap usually shows up in the first few weeks. A behavior gap can take months, often after it has already affected the team.
How easy it is to build after hiring: many skills can be trained. Behaviors are much harder to change once someone is in the job.

The verdict

You need both. A candidate with the right behaviors and none of the skills can’t do the job. But skills are the half most companies already assess well. Behaviors are the half they leave to chance.

That’s why so many people are hired for what they know and let go for how they work. And it’s why the people who leave often say the problem was never the job itself. It was how work got done there.

One caution. Assessing behaviors isn’t about finding people who are like you. You’re rating what someone did against the behaviors the role needs, not whether they’d fit in. And the behavior read is one input into the decision, alongside the skills, not a replacement for it.

How to add behaviors to your hiring

Name the behaviors the role needs. Pick two or three that matter most at that level. If you haven’t described your behaviors yet, start with how to turn your values into behaviors.
Ask for real examples. “Tell me about a time you disagreed with a decision your manager made. What did you do?”
Listen for the action, not the adjective. “I’m collaborative” tells you nothing. “I set up a weekly call with the other team so we stopped missing handoffs” tells you a lot.
Rate it against the role’s bar. Did the example show too little of the behavior, the right amount, or so much it crowded something else out?
Combine it with the skills read. Make the decision with both halves in front of you.

A tool can help organize this, but it can’t decide what behaviors your culture needs. I wrote about that in AI in hiring.

Start here