Carolina's "vaunted" defense
The Bills put up 24 on them and the Cardinals put up 22. We may get a better indication this week when they play the Patriots even though New England has struggled offensively most of the year.
Regardless, they've still played well and they still have a very good front 7. Depending how well the Saints run the ball early in that game, it could end up like the Texans 2011 or Bills 2013 game where the Saints just decide to spread them out because the front 7 is too good.