You can see this phenomenon in American football where the pretty good quarterbacks often become great coaches but the very best quarterbacks rarely do. The pretty good ones got good by being very detailed students of the game, memorizing thousands of plays and watching as much game film as possible... the absolute elites like Joe Montana often just had the ability to see an open receiver 30 yards away and throw the ball with 4 inch accuracy to the point that he would have run to during the ball’s flight.