Who the hell needs a coach for snowboarding? You cant really teach snowboarding, cause everyone does tricks differently and there is no correct way of snowboarding. I think its weird getting advices on how to do a trick from a guy, that has never done any tricks them selves. Best coaches are your friends that you ride with, cause they know better how the tricks are supposed to be done. Only use i could see for a coach is, that they can take care of travel organizing and getting their riders from A to B, so the riders can actually just concentrate on riding.