Our running game is exceptional and our pass protection proved that behind Orton, they are fine. Our passing game improves behind a new QB and we need one more passing target (at least). And we need an offensive coordinator with an imagination.
Our defense, our pass rushers are outstanding, are ILBs are good enough, and Poe should hopefully continue to improve. Our secondary needs 1 or 2 pieces -- doesn't need to be pro bowlers, but improvements are necessary. Our DEs need to improve, but that's not a critical position.
So essentially you're talking about a franchise QB, #2 receiver, a coaching overhaul, 1 or 2 pieces in the secondary, and hopeful improvements on DE (but not going to kill us if not. A good front office can easily accomplish that in one offseason, given our draft position and cap space. Particularly since a franchise QB and coaching overhaul are almost certainties.