I appreciated this advice from a good friend today:

I’m a big believer in what I call collaborative intelligence. I will never be the smartest guy in the room. But I know how to find, talk to, and work with people smarter than me. You have the interpersonal skills to do the same. My point here is to highlight another avenue to learn what you feel you need to know for the business but relieve some of the pressure you might feel to know everything before you act, a common pitfall.