In those very, very early days you want people who are there for the mission above all. You’re looking for passion, enthusiasm, and mindset. And you’re looking for seed crystals. Seed crystals are people who are so good and so well loved that they can almost single-handedly build large parts of your org. Typically they’re experienced leaders, either managers of large teams or super-ICs who everyone listens to. Once they’re in, a tidal wave of other awesome people will typically follow.

That’s how we built our core team at Nest. We sought out the best of the best, and they created their own gravity—pulling in more and more talent.

I remember looking around the office in those early days with my mentor, the gritty, boisterous, wise Bill Campbell. We stood there just grinning.

I first met Bill when he was on the board of directors at Apple. I got in touch again when I needed help as I was starting Nest. I remember he looked directly into my eyes with a dead stare, watching for any microexpressions, and asked, “Are you coachable?” Which meant, “Will you listen? Are you ready to learn?” That was the only qualification you needed to be coached by Bill—the ability to admit that you don’t know everything. That you’re going to screw up. And that you’re ready to learn from those screwups, listen to advice, and act on it.

Managers with a growth mindset think it’s nice to have talent, but that’s just the starting point. These managers are more committed to their employees’ development, and to their own. They give a great deal more developmental coaching, they notice improvement in employees’ performance, and they welcome critiques from their employees.

Finally, it means creating a growth-mindset environment in which people can thrive. This involves:

• Presenting skills as learnable

• Conveying that the organization values learning and perseverance, not just ready-made genius or talent

• Giving feedback in a way that promotes learning and future success

• Presenting managers as resources for learning

A growth mindset is about believing people can develop their abilities. It’s that simple. It can have many repercussions, but that’s what it is at its core.

The rising stars on your team may not be clamoring for your attention, but if you help them to dream bigger and become more capable leaders, you’ll be amazed at how much more your team can do as a whole.