Have you ever wondered why some athletes fail in the transition from player to coach?
Wayne Gretzky, the best hockey player of all time, failed to make the playoffs in four years as the coach of the Phoenix Coyotes. Ted Williams, the best hitter of all time, like Gretzky, could not lead his team to the playoffs in four years as a manager in the MLB.
By contrast, some of the all-time most successful coaches never excelled or even played the sport they coached professionally. Bill Belichick has won six Super Bowl titles with the New England Patriots, yet he never played a down in the NFL. Greg Popovich considered one of the best NBA coaches of all time, never played professional basketball.