I've often wondered how many slams Roddick would have won--if not for Federer?
But I am tempted to say "not that many."
Even at his best he was pretty much a serve and a forehand with an erratic and incomplete game.
Step 1: Refute content of argument. If that fails, Step 2: question intelligence of the author. If that fails, Step 3: demonize the messenger.