3-4 DE is obviously not his position, but currently he is probably our best defensive lineman even in this scheme. He has said that he likes the new position and is playing better in it this year than he did in his normal position last season. He's in the backfield more than anyone else on the team.
I can't tell you what it would take for Pioli to trade him, and there's reports that the new coaching staff is down on him, but for me I would only trade him for a 2010 1st rounder. He's too talented to let go for any less.
How about Dorsey and your old 2010 2nd round pick for your 2010 1st and #88 back?