Former Bears defensive coordinator Vic Fangio was one of the few head-coaching candidates last offseason whose reputation in the league was based on defense. With most teams looking for the next young offensive guru, Fangio's stature as a veteran defensive coach made the Denver Broncos' decision to name him their head coach a pretty bold move.
After a 3-6 start and a change from Joe Flacco to Brandon Allen at quarterback, Denver's lacking offense has sparked internal frustration, according to CBS Sports' Jason LaCanfora.
The real source of the difficulty, however, appears to be Fangio.