The red sox have been very successfull with a players coach. Francona has brought 2 world series. Like wise with the Celtics. Rivers is considered a players coach. Former yankees manager Joe Torre is a players coach. All he did was win 4 world series. Like wise KC Jones of the Celtics. They won 3 championships. I could go on, the point is your observation is to general and an oversimplification of the situation.
