It's backup quarterback week in the NFL. Drew Stanton is in for the injured Carson Palmer for Arizona, and he'll be opposite C.J. Beathard, San Francisco's designated placeholder until newly-acquired Jimmy Garoppolo is ready to assume the role, as the Cardinals face the 49ers. In Denver, the Broncos finally tired of watching Trevor Siemian complete passes to the other team and will go with Brock Osweiler.