A word of warning to all those soon-to-be Super Bowl champions in New England or Los Angeles: Don't get too comfortable. You might be looking for a job fairly soon.
The NFL's inexorable trend of going younger and cheaper does not bypass the best teams in the league. In fact, it may help them stay as good as they are.
An Associated Press analysis of Super Bowl champions over the past seven years revealed that title teams shed an average of 20.4 players off their 53-man rosters from the Super Bowl to Week 1 of the next season.