"It's something we're very happy with what he did, but we all kind of knew what we were getting in DeAngelo," Roethlisberger said, per the Pittsburgh Post-Gazette. "He puts the work in every day. He's a great a football player. When L. Bell comes back, it doesn't mean we're going to put him on the shelf.
"I think he's proven he can be a guy who can help give Le'Veon breaks. If he's tired, he won't be nervous to come out because he knows he has a guy who can step up right behind him and do great things."
Bell is arguably the finest runner in the AFC and the centerpiece of Pittsburgh's high-powered attack. He'll be needed weekly in massive doses, but having Williams -- an upgrade over Blount's moody, mediocre run with the Steelers -- will come in handy for a team littered with weapons.