One of the places that golf commentary should go is somewhere like this. The problem with golf, even at the highest level is that your confidence, swing and other factors change daily. Some days you feel good enough to swing aggressively, and other days you are just holding on. At the PGA tour level, I think that commentators still have trouble knowing what is going on between someone's ears to be able to say with certainty. The best commenters put their spin on things and don't talk about things they cannot be certain about.
And what people will always guess about someone like Tiger is what is really going on. Let's face it, he's uber talented, but doesn't open up much. Even his commentary on his own game is more about setting perceptions, rather than honest swing analysis. So for anyone to really know what he needs, at any given time, is pure conjecture. He obviously needed different people to look at his game, at different times, but games (and people) evolve. So to say that a former coach would work now is not really a 100% sound analysis. It's guesswork. Even for people who really know the game.
I like a lot of Brandel's analysis when I watch golf, he has some good insights. But unless Tiger was more forthcoming about what he is doing with the swing, where is head is and what exactly he is trying to accomplish, then a lot of this is guesswork. I remember there was some incident where Johnny Miller said that someone has "choked". And I think that's wrong too. It might look like that. For all you know, the guy had a bad stomach cramp and missed. It's perfectly fine to say "That person should have made that putt. that's what you train for, under pressure." But it's different to say "He choked" w/o really knowing if there was anything else.
So it's really a measure of tone. Perfectly reasonable to compare, do stats and try to see where Tiger was more successful. To say some of what was at the top of this thread is just wading into waters where you don't know all the facts. And with Tiger being so closed things, it's all guesswork.