(AP) — Though no one has run the ball more often than the AFC-leading Houston Texans, coach Gary Kubiak is looking for better production from his backfield.

Houston should be able to find plenty of running room Sunday against the league’s worst rush defense.

With both teams coming off byes, the Texans will surely look to get their ground game going against the Buffalo Bills, who are hoping to receive a big boost from a now-healthy Mario Williams in his first trip back to Houston.

The Texans have compiled a 6-1 record behind an NFL-leading 35.4 rushing attempts per game, and they average 140.9 yards to rank sixth in the league. Houston, however, has managed just 4.0 yards per carry – a number Kubiak is hoping to see rise.

A more efficient effort from Arian Foster could go a long way. The 2010 rushing champion is averaging a league-high 24.0 carries but ranks 28th with 3.9 yards per attempt.

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