When the Bears defense allows just 248 yards, 160 of those after an initial drive, and the Bears lose, the problem was not the defense (again).
The Bears defense has gone to sleep this week with visions of Adrian Peterson in its collective head. That may not be its sole cause for concern, however.
During the preseason, the Bears experimented with Blake Costanzo at middle linebacker with Brian Urlacher out while his injured knee healed.
Everyone knew this was coming. Its been stated repeatedly the last three years that the Bears' defense is getting old.
At some point the Bears were going to be forced into moving forward without franchise middle linebacker Brian Urlacher. That point may be at hand.