Having studied sports psychology at uni, co-written a book on the subject with the EGU's and Monty's psychologist a few years back, and witnessed no end of players - myself included - fail to deal with things on the course, finish off rounds, play to their full potential etc when they have perfectly decent technical ability (not including myself in that last bit!), I can safely say that I find some of the attitudes to sports pyschology expressed in this thread more than a little bewildering...!