The Bears' trade of Jared Allen to the Panthers Monday is expected to create more opportunities for outside linebackers Sam Acho, Lamarr Houston and Willie Young.
"We'll roll those guys in there," said defensive coordinator Vic Fangio. "I think Sam will play a good bit of the base stuff and then Lamarr, Willie, Pernell [McPhee] and then Sam [will be] in the mix to play the sub stuff."
In last Sunday's loss to the Seahawks, McPhee played 48 of 63 defensive snaps (75 percent), the most of any Bears outside linebacker.