Peter Kostis, in a Golf.com instruction piece using Paul Casey, highlighted how
much improvement Casey had made by concentrating not on the latest swing gimmicks but,
but on the good old-fashioned setup and fundamentals.

This article shows Casey’s whole swing in pictures, but take special note of his perfect posture at setup. 

Last week we asked you tell us why you think most golfers don’t concentrate on their setup
anywhere near as much as the very best golfers do. This week we’re challenging you to
answer that question for yourself. Is your alignment and posture good enough to give
you a chance of making a good shot? Not sure?