There is now doubt that the D'Amato system was "amazing" - however ONLY for short, explosive fighters like Tyson. It would never work with a tall fighter like Klitschko.

Rooney may be one of the last trainers of the D'Amato system (don't forget Teddy Atlas), but he has NOT been successful in "TEACHING" it. I see no evidence of the D'Amato system in Leonard Pierre, Vinny Paz, or any of his other fighters.

I recall watching Pierre-Pavlik on TV. Wally Matthews the announcer said "Leonard is a student of the D'Amato style... but what he's doing now ain't the D'Amato style. Far from it."