Not really. Trez may not be the fastest player on the earth, but it definetly isn't his minus, he still is fast enough. I've not seen a lot from Acquafresca, but i had the impression, that he is box striker just like Trez and not linesman nightmare like Inzaghi. David is better in every component - he is excellent in positioning, finishing the moves off, way more expierienced, better in the air and he handles the ball very well for such a tall man. As i said i've not seen enough of Acquafresca to judge, but i don't think he has anything to offer that Trez doesn't. Im not trying to say, that the italian is bad player, just we are going to loose one of the best in his position. If David leaves, i'd better see Del Piero replacement coming, and im not talking about Giovinco, but a natural SS.