I read Star Wars books. Don't judge me. I found these words of wisdom in chapter 12 of Star Wars: Fate of the Jedi: Allies:
Kenth Hamner sipped a cup of caf and glanced at a pile of datapads on his desk. So many things were getting neglected, but that was the nature of command, of leadership—one had to prioritize, practice a sort of political triage. Not everything was going to get accomplished. Hamner's job was to make certain that if something had to slide, it wasn't the important things.
I was surprised to find Star Wars addressing productivity, but I don't think I could have said it any better myself. The primary role of someone in a leadership position is to make sure that the important things get done, and this often this means that you have to let the less important things slide. Always remember the 80/20 rule.