Marcell Dareus & defensive line: It's rinse, wash and repeat with these guys. Dareus had three sacks, Jerry Hughes tallied two more and Mario Williams added another. With a league-high 34 sacks, the Bills are now on pace for 60 sacks on the season, which would eclipse their franchise record set last season. One question is creeping up, though: How long can the Bills keep this group together? Hughes is a free agent next spring and could command top dollar, while Dareus enters the final year of his rookie deal next season.
Robert Woods & Chris Hogan: Overall the offense didn't do enough to win this game but it wasn't the fault of Woods or Hogan, who stepped up and took some pressure off an ailing Sammy Watkins. Woods caught 6 of 8 targets for 52 yards while Hogan added five catches for 57 yards and a touchdown.
Anthony Dixon: With Fred Jackson limited by a groin injury, Dixon ran nine times for 62 yards, a 6.9-yard average that led the team. Dixon has gained an average of 2.31 yards after contact this season, the fifth-best mark in the NFL.
Kyle Orton: After some solid play before the bye week, Orton falls back down to Earth. His 29.3 QBR was his worst since taking over as the Bills' starter. He was pressured on just 13.7 percent of his drop backs, the second-lowest mark so far in Week 10. Orton didn't turn over the ball but his completion percentage (60.4) and yards per attempt (5.79) were just too low. Not converting red zone chances was critical to the outcome of the game.
Bryce Brown: Doug Marrone pointed out after the game that Brown's fumble will be talked about more than his strong contributions in the running and passing game, and he'd be right. It was a huge play in the game and while Ron Parker made an excellent play to bat the ball out of Brown's hands, that's one where he has to protect the football better. Ball security was an issue for Brown in Philadelphia -- he was tied with Fred Jackson for the highest fumble rate among running backs in 2012 -- and it cropped up again at the worst possible time Sunday.
Leodis McKelvin: Like Brown, his late-game fumble overshadowed the rest of his play Sunday. McKelvin couldn't protect the ball at a critical point of the game for the Bills, allowing the Chiefs to take over with excellent field position and a chance to take their first lead of the game. The veteran corner also gave the Miami Dolphins some bulletin board material after the game.
Seantrel Henderson: The rookie right tackle had a rough day in pass protection, allowing a team-high five pressures per Pro Football Focus' tracking. Henderson also flinched on a fourth-and-1 in the fourth quarter, drawing a false start penalty that was quickly deemed the "right call" by the NFL's officiating department.