His tail chasing and the fall-out from it definitely put a dent in his performance on the course for a bit, but he did make a comeback from that to win again...including another major. His struggles now have everything to do with his bad leg injury and not being able to play enough tournament golf to get his game in order. I don’t doubt that he'd be competitive (not necessarily win, but playing well) if he could use a cart, but he refuses to do it. Making the cut at The Masters showed that he's still got the talent.