For many leaders the hardest job they have is getting comfortable with not knowing. It is natural to feel like you have to understand everything about the area that you lead. And that’s a feeling that often cascades down through hierarchies. My boss expects me to be able to answer an arbitrary question on the spot, in order to accomplish that I need to be an expert on an increasingly large number of topics. I accomplish this by asking for more and more detailed information from my team, per...