The Bears are expecting Brandon Marshall to help their defense as well as their offense. "I think it will help out a lot," cornerback Charles Tillman said of Marshall. "I think (Marshall) makes me better. He pushes me; he pushes our entire defense with his big style, big size ... his style of play, his physical-ness. "So, yeah, he definitely pushes us and he makes our defense a lot better; he makes our defensive backfield a lot better."