It's entirely possible something unexpected happens in Chicago this week-end.
The Bears have Forte, who has had a top 5 RB type of season with almost 1700 yards from scrimmage and 9 TDs. If Clausen comes in and is a game manager, Forte has a good game and the D shows up, they could be a tough opponent. Add in the Lions history of late season collapse, well, there is hope for the Bears to help the Pack out here!