Everybody wants to be a professional athlete. We all spent time in our backyard pretending we were hitting in the bottom of the ninth in game seven. Most fans of any sport became fans by envisioning themselves wearing the uniform of their team. However, absolutely nobody wants to be a professional coach.
Coaching a professional sports team is to put yourself at the center of a pressure cooker, where you will almost always receive more blame than you deserve for the slightest on-field mishap, much less a major mistake, like leaving in a reliever to face one too many batters.