The Colts remind me of the Chargers of the early 80s. Chuck Muncie was a really good back, but they were just too pass happy.
QBs that aren't the greastest passers in the world but have a great system have thrived in the Superbowl - Bradshaw, Stabler, Plunkett, Brady, etc. I do think that Bradshaw and Aikman are very overrated as passers - Aikman especially. Aikman was never the same after Alvin Harper left and Cowboys didn't have a legitimate second recieiver. Aikman was great when all of his weapons were in place, but was pretty ineffective when things got out of sync.
The colts would benefit, I believe, if they got a really good offensive coordinator that called the plays rather than Manning.
I don't think Bradshaw was an overrated passer. Not because I think he was great, just because I never heard anyone seriously praise his passing. His overall cotrol, his game management (as one of the then dieing breed that called their own plays), and his ability to read defenses I've all heard praised, but not his passing. I doubt somebody like Bradshaw would ever be a starter in today's game, but he could probably get a job as an offensive coordinator.