According to mlbtraderumors.com, he may be traded this winter. Oakland is looking for a 3B, a SS, and/or a top pitching prospect. While I would be cautious acquiring a veteran pitcher from Billy Beane (Mulder, Zito), and equally cautious letting him pluck a prospect from us, I would see what he'd be interested in. Remember, we did get Harang from him.
Could an offer of Alex Gonzalez, Drew Stubbs and Johnny Cueto get it done? Probably not, but it may be a start.