Thanks for the help! I would roll with Chris Ogbonnaya, even though he is not that flexible for a back. However, the Browns will attempt to pound the ball with him, and he is definitely the better option among the two.
10 team H2H league, standard scoring [NFL.com]
QB: A. Rogers
RB: MJD, S. Jax, J. Starks, D. Murray, M. Bush
WR: M. Wallace, B. Marshall, P. Harvin, M. Colston, L. Robinson
TE: O. Daniels, J. Gresham
K: Sebastian Janikowski