" Make the Leader Occasionally Disappear: Several leaders of successful groups have the habit of leaving the group alone at key moments. One of the best at this is Gregg Popovich. Most NBA teams run time-outs according to a choreographed protocol: First the coaches huddle as a group for a few seconds to settle on a message, then they walk over to the bench to deliver that message to the players. However, during about one time-out a month, the Spurs coaches huddle for a time-out…and then never walk over to the players. The players sit on the bench, waiting for Popovich to show up. Then, as they belatedly realize he isn’t coming, they take charge, start talking among themselves, and figure out a plan. "

― Daniel Coyle , The Culture Code: The Secrets of Highly Successful Groups