The Buffalo Bills are finally themselves again. How far can they go?

The Bills put together perhaps the most impressive win any team has produced all season: a 31-10 demolition of the Cowboys. Can they ride the momentum into a January run?

One of the most vexing questions of this NFL season has been: What is the problem with the Buffalo Bills?"

Maybe there isn't one. The Bills, who started sluggishly and couldn't quite put it all together for much of the early season, have rounded into form of late. And on Sunday, they put together perhaps the most impressive win any team has produced all season: a 31-10 demolition of the Dallas Cowboys, who entered with a 10-3 record and had been humbling the competition week after week with their high-flying quarterback-and-receiver duo of Dak Prescott and CeeDee Lamb. But when the Cowboys got to western New York, the Bills greeted them rudely: Prescott was under duress all afternoon, Lamb had no separation from the Bills' defenders, and the Buffalo defense was suffocating against an offense that had looked impossible to stop. Dallas finished with 10 points, but all of them came in garbage time. For Buffalo, it was as good as a shutout.