Milan obviously won't replace the leaving veterans with players of equal talent and winning mentality. Even City and Madrid will find it hard to buy such winners in one mercato. But it doesn't mean that Milan can't buy players who will give more than what those seniors were giving lately. And if that happens, then Milan will be stronger than they were this year.
Afterall, Vucinic, Giaccherini, Vidal, Licht and Barzagli will never be as great as Pippo, Seedorf, Gattuso, Zambrotta and Nesta were, but they beat Milan to the scudetto and they gave much more than Milan's departing stars.