In this case, it might just be as simple as rebuilding his swing-—again.
That was tongue in cheek, right?
Even before he went buff his swing put more pressure on his left side than any golfer I ever remember seeing play. His left knee was never going to be able to take the punishment. The problem for Woods is that whenever the pressure is on, the tendency is to go back to what you know. Doing that damages his knee again.
The young bucks aren't scared of him. He isn't the longest driver on the course anymore. Doubtful he will ever return to this former dominance. He will be competitive, sure, but not dominant.