Are you having second thoughts about Sproles after last nights game?
Keep in mind that Schaub does have an injury history. Last two years he has stayed healthy and played all 16 games, but he missed 3 1/2 games in 2008 and 5 1/2 games in 2007.
I think that bradford/sproles for Benson/McNabb is a little too generous. Hopefully the guy is sweating it and you will be able to get more out of him than that. You are sitting good at RB so I think I would try to get a good WR out of him to try to improve your bench in that area. Try a bradford/edwards for Mcnabb/d.Jax and see if he bites on that. If not, then I would even do a mcnabb/Johnson trade.
10 team, PPR, 1 qb 1rb, 2wr, 2flex (rb/wr/te), 1k, 1dst
QB: Stafford, E. Manning
RB: Peterson, Blount, Hightower, Starks, Tate, Tolbert
WR: Nicks, Wayne, Bowe, S. Johnson, M. Thomas