Agree with Jim's early post, leave the pros to play the TPCs as much as possible. Gives the TPCs more money, and eliminates the pretense of a private club changing greens' grasses, moving greens or tees to make it more challenging. In the end, the Tour will switch anyway, at anytime, to get a better deal. It's only natural.
Let the TPC courses be changed as the 'all chemical' golf balls are endlessly changed to go farther with higher club speeds and better driver equipment.