The Steelers have laid out plans for their running backs Sunday in Chicago, and they are similar to the one they used against Tennessee.
Willie Parker will start and play two series, Rashard Mendenhall will play the third series, and they will rotate that way. Mewelde Moore will continue to play in passing downs.
"Anytime Willie gets tired, he can come out," Arians said. "If we get into a very long no-huddle mode, Mewelde is the no-huddle guy and we'll rotate from there. In short yardage, goal line, whoever's in the game."