The 5th is a great hole. But if the following quote from the article is really true, is it at least reasonable to consider doing something?:
Spogárd said the heavy undulations of the fifth green, an original Simpson creation, left only a small pinnable area, and, because of the amount of play, the green struggles. His plan, he explained, was to expand the green, creating more space for hole locations. “We don't want to change one of Simpson's greens any more than we have to, and the plan is in tone with his philosophy,” he said.