He'll be a world beater in time. He's going back to Milan at the end of the season though and Bordeaux do not have any authority over where he'll move to. Milan sent him out to get confidence and that's exactly what he's done. Now he'll be the spearhead of Milan's attacks for many years to come.
The plus side of this, they recieve a big bid for Kaka and the likelyhood is he'll be sold, as Gourcuff is a ready made replacement, so City's door to Kaka is wide open.
AC Milan are such a well run club. It makes me very jealous.