One of the marks of an excellent coach is when they acknowledge that they do need to add additional coaching to help a skater reach their potential, and then aid and assist in finding that additional coach. Yes, some skaters have reached the top levels with what would seem to be obscure coaches, but, these coaches had the ability to either a) coach the triples, L4 spins, etc , OR they had the intelligence and focus to find other coaches to help in that. The difficult part is where a coach is in over his/her head, and cannot admit it to him/herself or others.