Give Paula Creamer a break. All tour players—men and women—at times tinker with their swings during a competitive round. That her caddie was doubling as a short game coach in the middle of the U.S. Open is no indication of her lack of determination or will to be a champion. What you saw with Creamer was a case of bad nerves under pressure. It happens to everybody. There is no prize for showing grace under fire.
So cut Creamer some slack. If she needs help keeping her head down over a putt—more power to her.