To my mind, the 5th, 7th, 8th, 9th, 10th and 15th holes are pretty ordinary. to make them better/more interesting? More difficult greens? After all, the pros are hitting them now with much shorter irons, why not make their target a little more difficult?
I can't see how length alone will do anything. The ball not just flies too far, it runs too far. i'm not a big hitter by any stretch of the imagination, but when I played the 5th, for the first time in my life, I hit a par 5 in two, and with a 4-wood and 5-iron at that. Still four-putted, though...
Can you exapnd on the weaker holes, better/more interesting comment? Which holes in particular come fit that description?
The problem here is not the golf courses.
Why not do something about the golf ball and its flight, before choosing to alter (and most likely destroy) the great golf courses of the world?
If the R&A planned to make renovations to TOC, I can almost guarantee you that there would be dozens of people from this site ready to lie in front of the bulldozers!