I think you could ask any coaches, but why not start with Frank Carroll and John Nicks. Everything can not be taught. Talent meaning a certain amount of ability and predisposition. Talent and also desire along with hard work are essential. Some who are not quite as talented in certain aspects of the sport may make it to a certain point perhaps and never go farther. Certainly a good coach can help skaters with varying degrees of talent go farther and achieve more, but talent is an important factor. Ineffable qualities by their very nature are hard to describe, but certainly can be felt. It's in the way certain skaters performances can bring an audience to tears. Paul definitely has ineffable qualities as well as talent and years of training and hard work that make him so wonderful to watch. It seems to me that his partnership with Piper has brought out in him a more palpable joy and enthusiasm. ETA: We were talking about Paul's "lean and edge quality." Just teaching someone basic skills will not necessarily help them achieve the kind of lean, edge quality, grace and panache that Paul possesses, IMO.