Without knowing your scoring system, I'd say your strongest position is definitely at WR. 3 bonafide starters as well as solid depth. Your weak spot appears to be RB--I like Forte as a RB3/flex, but not as a RB2. McGahee might do as well for you as Forte. Slaton is in a crowded backfield and looks to be a change-of-pace back now. Also, if you start 2 QBs I'd look to upgrade.
You might be able to deal one of your QBs and a WR for a RB/QB upgrade. Like I said, it's tough to tell without knowing your scoring system but that's what I'd be looking to do if this were my roster.
Good luck! Please see mine:viewtopic.php?f=44&t=468933