Really, what I'd most like to see is a deal of TA, either Scal or Davis in a sign and trade, and Giddens or Walker to bring on a solid perimeter defender who can legitimately play the 3 and can contribute some minutes at either the 2 or, ideally, the 4. That kind of move gets us a legit 7th player (with Sheed as the 6th, House as the 8th) and clears up 1 or 2 roster spaces so that we have space for Powe as a 5th big behind Perk, KG, Wallace and Scal or Davis. We'd have Pierce, Allen, the trade acquisition and House, with the remaining player between Giddens and Walker as a 5th wing, plus Rondo and a backup point signing (I'm fine with Marbury at the veteran's minimum with that squad). That's 12 guys, and we can use the last three spots on any of the following: a wing at the LLE if one comes by, a second player kicked into the trade above, Hudson, a young project (a summer league guy, even Swift), a veteran addition.
But as with others, unless a trade like that comes along, we just have little space, and I definitely will be bummed out if we lose a guy like Powe because of bad former signings and a surplus of project players, considering we'd be losing one of the projects that actually worked out.