Halftime thoughts: Bills 10, Chiefs 3

ORCHARD PARK, N.Y. -- Offering some halftime thoughts as the Buffalo Bills lead the Kansas City Chiefs, 10-3:

1. Jeff Tuel, starting in place of Thad Lewis, has arguably outplayed Alex Smith to this point. Tuel was able to connect on a 59-yard touchdown to Marquise Goodwin, which has been the difference early in this game. Smith and Tuel are both completing a lot of shorter, manageable passes, as was expected. Despite the Chiefs entering the game with the NFL's best pass rush, they haven't gotten to Tuel yet today. The Bills, on the other hand, have two sacks.

2. Tuel's one interception came in the second quarter on a bad misfire to tight end Scott Chandler. The Chiefs knocked on the door after the turnover, moving to the Bills' 11-yard line, but cornerback Nickell Robey came up with a key tackle on third down -- another solid play by the undrafted rookie who has held his own this season. It doesn't feel like the Chiefs' offense has the punch it needs for this game.

3. C.J. Spiller's week off seems to be having an effect, as he was able to break away from defenders on a 29-yard run in the second quarter. Spiller sat out the first drive of the game and the Bills have used a rotation featuring more Tashard Choice than usual, but when Spiller's been on the field, he's been effective. Spiller has 46 yards on six carries.

4. You have to think field position will be a major factor in the second half. Each team has gone on long, sustained drives early in the game. Expect possessions to be limited in the second half. This one feels like it could come down to a late turnover deciding the outcome.