This is the 50th anniversary of the Apollo mission. Here's a special quote about the management of that mission, that is applicable today
In my career, I've worked for a lot of really good managers, and of course, Gene Kranz was one of the best. One of the things I really admired about Gene ... is that if things didn't work out quite right in a project or if a thing that you were doing, Gene would often say, "Well, maybe I didn't explain as clearly as I should have what it was I needed you to do."
‒ Mission Control Center ISS Project Johnson Space Center
Me (second from left, with my boss on the left) with Gene Kranz and Jim Lovell
Kranz and Lovell spoke about the management of the Apollo mission. Kranz's famous Failure is Not an Option was countered by Lovell's No Gene, on board Apollo 13, Success was our Only Option.