So here is a name to ponder: Antonio Cromartie.
The San Diego Chargers cornerback and former Pro Bowler has one year left on his contract. According to the San Diego Union-Tribune, the Chargers may be interested in getting something for Cromartie now by trading him in the offseason.
Cromartie recorded three interceptions and 33 tackles for San Diego this past season. In 2007, he led the NFL with 10 interceptions.
It would probably require the right draft pick (or picks) for the Browns, Ravens or Steelers to lure Cromartie from San Diego. It's too early at this point to know for sure if AFC North teams are interested. But Cromartie would provide an instant upgrade as a starting cornerback on any of these three aforementioned teams.