--TE Tony Gonzalez, who caught 10 passes for 113 yards with a touchdown against Buffalo, ran his career count of 100-yard games to 25, breaking Kellen Winslow's NFL record for 100-yard games by a tight end. His 35-yard catch in the second quarter was his longest of the season.

--RB Jamaal Charles had a mixed day against the Bills. He caught a 36-yard TD pass from Tyler Thigpen on Kansas City's opening possession for the first touchdown catch of his career. He later lost a fumble at his own 30 to set up a Bills score.

--WR Mark Bradley, who caught a 45-yard TD pass from Tyler Thigpen in the third quarter of the loss to the Bills, left the game with a calf injury that bears watching.

--QB Tyler Thigpen had a career-high three TD passes against Buffalo, but his passer rating of 85.4 was brought down by two interceptions, both by rookie Leodis McKelvin.

--QB Quinn Gray saw his first action since joining the Chiefs on Oct. 22. He completed seven of eight passes for 76 yards and engineered a 71-yard scoring drive that was capped by a 3-yard TD pass to Dwayne Bowe.

REPORT CARD VS. BILLS

PASSING OFFENSE: C -- Tyler Thigpen's numbers alone -- 17 of 31 for 240 yards and three TDs against two interceptions -- look better than his performance did on the field. Two of his touchdown bombs, a 36-yarder to Jamaal Charles and a 45-yarder to Mark Bradley -- were both underthrown balls that worked because of bad coverage on the first and a fallen defender on the second.

RUSHING OFFENSE: B-plus -- What's not to like about a day when four runners average just over 12 yards? Well, 56 of the team's 159 rushing yards came on quarterback scrambles, with backup QB Quinn Gray getting his 27 on a meaningless run on the game's final play. Larry Johnson had a great 63-yard bolt that should have gone the distance, but he was caught from behind at the 2. Still, he averaged 11.6 on a 7-81 day, but that means he gained only 18 yards on his other six carries. Not good.

PASS DEFENSE: D -- Trent Edwards, who had struggled mightily in throwing three interceptions on his first six passes in his previous game, got better in a hurry. He completed 24 of 32 passes for 273 yards and two TDs without being picked or sacked. When he got bored waiting in the pocket, he took off running for 38 yards on six carries with two TDs of 5 and 15 yards. Lee Evans, who'd been all but MIA in his previous several games, had a 5-110 receiving day.

RUSH DEFENSE: C-minus -- Marshawn Lynch ran through would-be tacklers for 79 yards on 20 carries, and Fred Jackson added 9-56 as a backup as part of a 171-yard rushing day. Kansas City's tackling continues to be a problem.

SPECIAL TEAMS: F -- Kansas City kept Leodis McKelvin and Roscoe Parrish out of the end zone, which was good news. But for a second straight week, special teams -- through botched kickoff returns or short punts from deep in the Kansas City end -- gave an opponent prime field position all day. The Bills' average drive start was their own 48, and part of that was because of Kansas City turnovers. Still, the Bills got the ball after kickoffs or punts at their own 39, the Kansas City 40, the Kansas City 33 and the Kansas City 44. They scored on all of them. P Dustin Colquitt continues to struggle. He averaged only 36.7 yards gross and net. If he's not healthy -- he missed two games earlier with a groin injury -- find someone who is. And the Chiefs are still looking for a return man. Rookie Kevin Robinson averaged only 18 yards on five kickoff returns, and Kansas City's average drive start was its 25.

COACHING: D -- Herm Edwards, brought to Kansas City to be a defensive fixer in 2006, brought Gunther Cunningham back to the Chiefs as his defensive coordinator in that first season. And while the Chiefs showed brief improvement in the first two years, they are clearly back to ground zero. The league's worst overall defense hit a franchise low in allowing a club-record 54 points to a Buffalo team that had scored only 54 points in its previous three games, all losses. The rumbles are that major defensive staff changes will be forthcoming in the offseason, though it's hardly the coaches' fault when players don't tackle. That's a personnel concern.