Drop Michael Bush for Cadillac Williams?

[gtiguy2006]

PPR SCORING

QB - Roethlisberger, Freeman
RB - McCoy, S-Jax, Felix Jones, Starks, P. Thomas, Jacobs, M. Bush
WR - Megatron, V-Jax, Welker, Manningham
TE - Daniels
DST - Patriots
K - Cundiff

Should I bother putting in a waiver claim for Cadillac Williams to handcuff Steven Jackson? Or am I fine with the RB's I already have. The only one I could potentially drop would be Michael Bush.