I saw this article and thought it was interesting. Looks like ESPN is trying to make the QB Rating actually MEAN something.

Mike Tirico lays it all out HERE.

Michael Vick led the NFL with 6.8 yards per rushing attempt last season, but the system the league uses to rate QBs gives him no credit for the 676 yards or nine TDs his legs generated. Conversely, Jay Cutler lost 352 yards on sacks, but Osi Umenyiora could still be planting Cutler near Jimmy Hoffa and passer rating wouldn't notice.