You will launch many projects but have time to finish only a few. So think plan develop launch and tap good people to be responsible. Give them authority and hold them accountable. Trying to do too much yourself creates a bottleneck.
I'm not going to have a perfect career. It's better to be Billy Wilder and make lots of movies and have five or six great ones than to make so few movies that when you make a bad one it crushes you.