Whoa Nellie!
Let's go back to the original questions:
How about the advantages/disadvantages of "re-building" one's golf swing?
Let me answer this question totally as a stand alone question:
In my teaching practice, the only way I am doing a "Re-Build," over an "adjust," is when the changes that HAVE TO BE MADE will not "fit" the current overall pattern.
I use to do it all the time, but I learned to tweak and adjust to slowly "renovate" a pattern.
On tour, a rebuild is needed LESS often than with amateurs, and often has had poor results.
The "Method" teachers on Tour will try for a rebuild every time, because—in general—that is what they are selling.
When I look at 100 players at a PGA TOUR event, I see maybe 5% that I would overhaul.
The second question was:
It has worked for guys like Tiger and Faldo, but been horrible for others. Is it quality of instruction, talent of the individual making the changes, or just dumb luck that allows some to succeed while others suffer?
Here is a more thoughtful answer:
Is it quality of instruction that allows some to succeed while others suffer?
To me "quality" means knowing what and when to change. But with method teachers teaching everyone to do the same things, it becomes more of the quality of the method when a "reBuild" is being force on a swing. The better method will work on more. They WILL NEVER work on all, or even most.
It is the talent of the individual that allows some to succeed while others suffer?
If you have enough talent, you can make multiple patterns work. See Hogan, Nicklaus, Kite.
Is it just just dumb luck that allows some to succeed while others suffer?
Yes.
Some folks just accidentally pick the right method, and method teacher.
Sometime the student just doesn't do the thing the teacher is telling them to do that wouldn't work, doing a few that make it look like they have been "fixed" - See Tom Pernice. Sometimes the JUNK the teacher is teaching is superior to the JUNK the last teacher was teaching, and there is improvement.
I think Tiger would be furious if you told him his success with his new swing is due to dumb luck.
His is due to talent, and the fact that Haney's method has lots of good things in it, most notably a really good pivot.
I would be furious if someone told me directly to my face or for that matter behind my back, in a nonjoking manner that I was overweight. Despite this, many would agree that they are speaking the truth.
Most folks in golf RUN from the truth.
Just like the guy who teaches some crazy inside-out contact stayed away from the TrackMan portion of a seminar that would have proven his JUNK dead wrong.
Is this why some teachers get "famous quick" for helping a particular player, then disappear as soon as they start working with others?
The media can make you or break you.
What about Harmon's failure with Mickelson, Olazabal, and Leonard?
Well, my point is this. The REASON why Tiger can take something that's not best for him and make it work is because he works very hard to make it work. Hours on the range, many lost (and won!) tournaments, and hours of visualisation. This perserverence is called hard work, not dumb luck...maybe you can call it dumb work
Hard work and PURE-D talent.
Only a golfer as great at Tiger could pull it off with even that much work. Try to take some other low level player and throw your method on them and tell them to work their ass off and let's see if they stay on tour
Very true.
See Sam Randolph.