I think he will. Give him 3 seasons and he'll be playing 30 games a year for Man U.
Uniteds problem is their piss poor midfield. Fergie is insane if he thinks putting a half decent striker in centre mid, or a poor left back in there is going to solve his problems. They need a decent centre midfielder, if not 2, now. Graveson would have been an ideal stop gap, but I guess he though Rooney and Neville (Uniteds only consistent players, maybe Nistlerooy and Van Der Sar too) would be enough to win the Cup and come 2nd in the league.