You got yourself some really good depth at RB. QB strength is average, but Big Ben should put up decent, consistent numbers for you, and Fitzpatrick may end up with some big games like last year again. Where you're going to need to upgrade is WR, as you don't really have a legit #1 receiver on your roster. As for your #2 receiver, I'd prefer Moss over Edwards but neither are great options.
Check out the WW to see what receivers are available, but you may have to give up a good RB to get a strong WR. Once you have something in mind, hop over to the Draft/Trade/Keeper forum and post what you're contemplating there to get a feel from others here what they think.
Good luck this year, and welcome to Fantasy Football!