No doubt that in any trade made, the first player to go along would be Scal. Last season, we had to go after players like Pollard to even have a bench. This year the Celts have some promising players on the roster, so there's not much room for Scal anymore.
The problem is that Scal is signed through 2009-10, so the $6 million salary would be an inconvenience. Unless the Celtics can send the salary along with him in a trade (most unlikely), he will probably stick around.
One player I would not trade is Pruitt. He showed some promise last year, and he's been solid during the preseason. More than House, I think that eventually he will be the definite substitute for Rondo, since his offense and point guard skills are much better.