I'll go to my grave saying Tim Couch could've been in the conversation of top 10 QBs in the early 2000s if he wasn't always hurt because the expansion Browns had turnstiles for offensive line and no running game to help either because of it.
Then years later, we had dominant O-lines with no QB. Put Couch behind some of the lines we've had in the past decade and he would've shined imo.