[registrar]

Just to be clear, I'm not saying that the best players cannot benefit from coaching, but that often the best things they do cannot be coached. At present, I can't think of an example from a sport that would be recognised by the whole forum so I'll use one that no one understands. Ronnie O'Sullivan is the greatest snooker player to have walked the Earth. I would suggest that coaching helps him in some ways (temperament and concentration on particular) but it has nothing to do with the fact that, on his game, he can pull off any shot (using either hand) and that he will just beat everyone else if he's playing his best game. There's not much use telling him that he should hold his cue differently or whatever.