Here's everything you need to know about the head-coach openings throughout the NFL.
Buffalo Bills
Bills fire Rex Ryan as playoff drought reaches 17
Help wanted: Bills coach who can handle toxic mess, find a QB
In tasking Doug Whaley with finding coach, Bills risk more of the same
Silence of Bills' management does team no favor in coaching search
Denver Broncos
Kubiak tells Broncos he's retiring due to health