You may not have noticed it, but the Buffalo Bills defense is having a tremendous year.
The Bills are sixth-best in the NFL in yards per game allowed, fifth-best in yards per play. They rank fourth in the league in Football Outsiders' DVOA metric. They are brimming with both veteran talent (Jerry Hughes, Micah Hyde, Lorenzo Alexander) and up-and-comers (Tre'Davious White, Matt Milano, Tremaine Edmunds, Taron Johnson).
Buffalo's defense stymied Tom Brady and the Patriots for three quarters Monday night. It was almost single-handedly responsible for an early-season upset of the Vikings.