Its pretty simple. WR, DL, LB are all in good shape. Everything else needs looked at.
RB - Bettis is running on empty and his legs can't take very much more. Zeroue can't break an arm tackle and has seemed to slow down from his last year roadrunner-like speed. Drop Zeroue, -maybe- keep the bus around for one more year. Draft a good back (Chris Perry?)
TE - Jay Reserisma (or however you spell it) was far too expensive to be injured for more than half the season. Toss him. If you want to be a running team, pop Bruener in there (or consider switching him to T)
OL - Chukki Okobi should finally get his start at C, Faneca is definately worth keeping for the rest of his career. Everyone else should be looked at. MAJOR reconstruction needed on the O-line.
QB - Tommy Maddox would be a much better QB if he had time to throw and no fear of the incoming blitz through the porious line. But he is older, so grooming a new QB may be in order (If they get a high enough pick, I'd -love- to see Eli Manning in a Steeler outfit).
DB - Putting nickleback Deshea Townsend into starting Corner was a good first step. Ike Taylor, who is rough, but still has potential as a shutdown corner could start opposite Townsend. Put in Chad Scott as the nickle back, drop Washington like a bad habit, and replace both safeties with the backups (Polymalu is starting to get into his own, and Chris Hope is a HELL of a safety). Drafting isn't necessary here, just keep Logan around for a dime back, and recruit low picks or vets for depth.
And lastly, switch to 4-3. I'm a huge believe in the Cowher 34 package, but Jason Gildon is losing a step, so they should either put him in as DE and move Kendrell Bell to strongside LB, or find a replacement for Gildon (switching a college LB or DE to the 34 package just takes too many years to work).
That means a rather large pruning and drafting to get in order. Perhaps they can weasel NE out of half their draft picks (hell, they have something like 30 picks next year!!).
Who Dey? Bengals in the postseason baby! Yeah, there is a good chance they'll lose, but just as good a chance that Baltimore will lose to either Cleveland or Pittsburgh (those division games are doozies).
I can't wait to see Warren Sapps face when they ask him why the Super Bowl champs aren't going to the post season this year.
My predicitions? Cincy over Tennessee. KC over Denver, NE over Cincy, Ind over KC, Ind over NE, and Ind over St Louis (who cares about the NFC postseason?)