from what i saw in the preseason, he SHOULD be our #2. he is a good RB, who has a nice stiff arm, (did you see his TD run in the last preseason game??).
he woud allow us to run the same plays with him in the game as we would if McGahee was in the game.
i think Williams is a good RB, but he is best used running to the outside, not as a every down back.