Well, I still think we can get something for Sheed. Trading Perk or BBD isn't out of the question either, especially since there seems to be more acceptable backup bigs than wings. Though I wouldn't go down that road yet.
Still, if Doc makes a commitment to hold Pierce and Ray to restricted minutes regardless of who is backing them up, we could just wait until the trade deadline and see who is available and/or who gets bought out.
I also think, as Truth 34 says, that Marquis would be a nice addition right now. He'd take some of the pressure off doing something right this second. We could get though the first half of the season with him backing up PP and Bradley backing up Ray.