Welcome aboard.
I think this team could very well be done. However, with the glut of 3's this team now has there is definately the possibility of one final deal being made that could eventually land the Bulls a player like Wilcox or Gooden that could really help the Bulls get some points in the low post.
As far as KG goes, unless he is forcing a deal, I don't think the Bulls will get him. However, if the Twolves decide to deal him, I think the Bulls can put together as good of an offer as anyone else and would be the front-runners for his services (they could afford to deal one of Deng/Noc) in addition to some other players like Tyrus Thomas (or our 1st rounder next year).
If the team got KG or O'Neal they become the best team in the league (on paper).