It might seem like there’s as much separation as ever between good and bad NFL teams. But as the NFL regular season draws to a close, a deeper look at the numbers reveals the opposite: Teams are bunched in talent much more closely than they appear. The league is at a crossroads, and the next few years will determine which contending franchises will rise to new dominance — or whether that’s even possible anymore.
http://www.espn.com/nfl/story/_/id/18286529/cowboys-raiders-why-mediocrity-reigns-nfl