Here's what we learned:
- Peyton Manning put the finishing touches on the greatest season a quarterback has ever had. Manning was especially clinical against an awful Raiders defense, finishing 25 of 28 for 266 yards and four touchdowns ... in one half. His final throw -- a 5-yard touchdown pass to DeMaryius Thomas with 13 seconds to play in the second quarter -- broke Drew Brees' single-season yardage total of 5,476 yards.
- Manning's final 2013 statistics through the air: 450 of 659 (68.3 percent), 5,477 yards, 55 touchdown passes, 10 interceptions, 115.1 passer rating. This is a line that might never be topped.
- The futures of Raiders coach Dennis Allen and general manager Reggie McKenzie remain very much up in the air. NFL Media columnist Michael Silver reported earlier Sunday that owner Mark Davis gave signals this week he was leaning toward keeping them in 2014. The caveat was that Davis could change his mind if the Raiders were embarrassed against the Broncos. Going into the half down 31-0 certainly qualifies as embarrassing. Stay tuned.