You're kinda in the same boat as I am. Favre as QB is fine along as he stays healthy, and WR's are perfectly fine. The only weak spot that I see is in RB. I don't know if Forte will do well in Mike Martz's new offense. Foster looked good in preseason, but he is still unproven come the regular season. The rest of your RB are pretty much bye week replacements.
There are some definite gambles with tons of upside in the RB department, I love Huggins, got him on my scout team for waivers, he went undrafted in my league. If he pans out the way that he could then you will be the genius of the draft. I think as a backup Maroney will be fine, I’m not big on westy man that guy will be concussed if the wind blows too hard. I’d release him and look to the redskins for some sleepers with upside, you will own with your WRs and could even package on or two of them up…meachem and Gaffney look to week 7 when the Donkeys host Oakland and the saints host the browns, these are two matchups where both Gaffney and Meacham could go off, then sell them both high and get yourself the hot backup at that point whoever that may be, Bradshaw, stewart, hightower, or brown.