Just two quick points:
I think this team will live and die by its RBs (more than most others). If your foursome can play to its potential, you'll be going places, but you may need to be patient.
You may also need to be flexible; I'd drop the NYG D and pick up a sleeper RB instead. If one of your current backs doesn't pan out (if Watters does sit out the campaign, for instance), the extra insurance will look pretty good.