Maybe that's true. Then the Braves need to improve in this area.
I honestly don't get the reasoning of Andruw and Francoeur. They think they'd hit fewer HR by not swinging at so many sliders? Francoeur stopped being a useful hitter after age 27. Clearly, something wasn't working with his approach. For Andruw, it was age 30, and that has kept him out of the HOF so far.
Of course, not every hitter can be turned into a star through proper coaching. But I think that things like pitch recognition, reaction time, hand-eye-coordination etc., or even a good mental state at the plate, can be improved in most players. Or even the ability to think along with the pitcher, removing at least some of the guesswork.
The Frenchy case is very interesting because as he's gotten better in the booth (and I consider him one of the best color guys in the sport, and my personal favorite one to listen to), it's very clear he now understands what he SHOULD have done as a player. Can we imagine what his talents paired with even an MLB average approach at the plate could have been? Dale Murphy...maybe?
So why couldn't 24 year old Frenchy understand that swinging at everything is a bad idea? Why wasn't he taught these things? Who couldn't get through to him? Why not? Clearly he's smart enough to understand, so why did it take until now to sink in?