You think about white coaches that were almost always occupying a job for 20+ years and how many left coaching. Sloan, Nelson, Adelman, Karl, et al. They were replaced by more white guys. Obviously some of them are doing a very good job but the eventuality of more black coaches in the carousel has been anything but eventual. There were also a lot of players that I thought would make very good coaches that haven't gotten much opportunity, and a number of them have made some sort of foray into coaching.