"As far as who it's going to be at quarterback, Brady is going to start, Matt is going to be the backup," Crennel said. "That's what we are doing, and going forward, that's what it is,"
Cassel struggled in the first half against Cincinnati last Sunday and Quinn came in and hit 9-of-14 passes for 95 yards. The Chiefs still lost 28-6.
In four games this season including two starts, Quinn produced 308 yards with no touchdowns and three interceptions while completing 60.3 percent of his passes.
He suffered a concussion Oct. 28 and hadn't played until the Bengals game.