Bills counting on improved defense to better contain Chiefs

Buffalo Bills outside linebacker A.J. Klein picks up a fumble by the Houston Texans during the second half of an NFL football game, Sunday, Oct. 3, 2021, in Orchard Park, N.Y. (AP Photo/Joshua Bessex)

Buffalo Bills middle linebacker Tremaine Edmunds (49) tackles Houston Texans wide receiver Brandin Cooks (13) after a catch during the first half of an NFL football game, Sunday, Oct. 3, 2021, in Orchard Park, N.Y. (AP Photo/Adrian Kraus)

Houston Texans quarterback Davis Mills, left, fumbles the ball in the rain during the first half of an NFL football game against the Buffalo Bills, Sunday, Oct. 3, 2021, in Orchard Park, N.Y. Mills was able to recover the ball. (AP Photo/Adrian Kraus)

Kansas City Chiefs quarterback Patrick Mahomes (15) looks to pass during the first half of an NFL football game against the Philadelphia Eagles on Sunday, Oct. 3, 2021, in Philadelphia. (AP Photo/Matt Slocum)