He is not toally off form.. but i think that he is not confortable with the new formation...and you can see that because henry near him makes trez do a lot more... (henry being del piero´s role in juve).
But i dont think that change the formation just for him will be good.
We will have to pray that he will find a way to solve this problem.
Good for him to score those two goals, Hopefully he will continue like this and Improve, nothing better than Striker who can score goals when Called upon. Of course doing more than this, is a Plus. But it's Trezeguet we are talking about I am really glad that he is starting to perform. Keep it up Trezeguet.