As a manager, you are judged on your team’s outcomes, so your job is to do whatever most helps them succeed. If your team is lacking key skills, then you need to spend your time training or hiring. If someone is creating problems for others, then you need to get him to stop. If people don’t know what they should be doing, then you need to construct a plan. A lot of this work is unglamorous. But because it’s important, it must be done, and if nobody else does it, then it falls to you.

This is why adaptability is a key trait of great managers. As your team changes—whether it’s goals shifting, people joining or leaving, or processes evolving—what you do every day will also change.

I finally realized that I had to give up wanting to be both a design manager and a designer, because in attempting to do both, I was doing neither well. Don’t learn this the hard way—at the point in which your team becomes four or five people, you should have a plan for how to scale back your individual contributor responsibilities so that you can be the best manager for your people.

Even if they have the exact skills that I’m looking for, it’s better not to try to fit a round peg into a square hole. Each of us ought to be working in an environment that we love with the people who share our passions. And if along the way we realize that we’re meant to do something else, let’s celebrate that instead of seeing it as a failure.

When you think about formal training, the question to ask isn’t Is this worth doing right now given all the other things on my plate (or all the other things I could spend money on), but rather One year from now, will I be happy I did this? When framed that way, the choice tends to be clearer.

There are two major errors with that line of thinking. The first is overestimating what you, the manager, are capable of. Yes, it may be within your power to solve a wide variety of issues, but as a single individual, you can’t solve that many of them. The best work comes from those who have the time to live and breathe a problem fully, who can dedicate themselves to finding the best solution.

The second error is assuming that nobody wants to take on hard problems. In fact, the most talented employees aren’t looking for special treatment or “easy” projects. They want to be challenged. There is no greater sign of trust than handing your report an intricately tangled knot that you believe she can pull apart, even if you’re not sure how.