It is a very true fact that the first idea about what shot to play, which club to use is invariably the correct one. This was seen when Aaron Baddeley won his first US PGA championship. Especially during the last few holes of the final day. Baddeley was leading by one shot. The approaches of the two men were very different.
Baddeley fussed about, and made sure everything was correct and in order before he hit his ball. Especially his putting. Once he had made up his mind he walked up and hit his shot. No doubt, no hesitation.
Furik on the other hand was a picture of indecision with his iron shots and his putting. This is brought home with emphasis on the last green of the match. Baddeley prepared and then hit his put with no hesitation, and the ball fell into the hole and he won the championship.
Furik however, prepared, stood over his put, walked away, had another look, stood over his put again, only to walk away once more before standing over his ball. He stood for an eternity, and then missed his put. The lesson here is to commit to the shot, say