I have Mendenhall and I wouldn't do this. I'm also a Steeler fan and after watching all of the games I think Ben will really help Mendy out. If you watched any of the games, the Steelers were completely one dimensional on offense, knew the run was coming, and Mendenhall still put up great numbers. Burleson and Amendola are unproven so this is a pretty much a Mendenhall for SJax deal straight up in my opinion, which I definitely wouldn't do. I don't put too much stock in rankings, but mostly everywhere you look Mendy is higher than SJax. Also, you already sat through Mendy's bye. Just my 2 cents.
Help with mine? It's a small time deal. I'm 2-3 and I don't think I can afford to wait for Steve Smith (Car) through his bye, injuries, and quarterback. Due to byes, I would have to start Louis Murphy this week. I could trade Smith for Garcon, Thomas Jones, and Davone Bess. I would rather start Garcon than Murphy I think.
Rest of Team:
RB: Mendenhall, Benson, Hillis, BGJE, F. Jackson
WR: Smith (Car), Driver, Ocho, T.O., Murphy