The Chicago Bears defense has played terrific football most of the season. However, it is hard to keep doing that once you start losing key pieces. They already came into Sunday without Kyler Gordon, Jaquan Brisker, and Montez Sweat. Their absence showed in the Bears’ inability to stop the run. Arizona had little trouble moving the ball. Things couldn’t possibly get any worse. So naturally, that is exactly what happened. Stud nose tackle Andrew Billings, who has been a crucial part of this unit since last season...