I gave it a B, but I think it should be a b+, as it opens up a few good options.
1) If we decide to keep both Green and Turner, we will a pretty good rotation on the SF, it will also mean that Young can get in to the NBA, without being pushed into the deep end to early. Wallace will be playing no role on the team at all.
2) We can now swap Green without too much of a problem. This actually means, that we now might have enough pieces to get a real Center, not Dwight Howard but we might get a decent center or at least an upgrade from what we have now.
I think the next move would be to try and get a center or get rid of our bad contracts, so by the end of this season we would only have building blocks for the future, a lot of picks and a lot of cash that we can use in FA.