Denver Broncos running back Willis McGahee put together a strong performance in the Broncos loss to San Diego, finishing with 125 yards on 17 carries. He did not get into the end zone, but if he can consistently put up 100+ yards he returns to being a consistently viable fantasy option.
It is most noteworthy that Knowshon Moreno received zero carries on the day. It is safe to say that McGahee is "the man" in Denver as long as he retains the hot hand. This kind of consistent carrying makes him a nice little flex option and at worst a great bye week fill-in. Considering he's put up 228 yards combined the last two weeks, I'd imagine you will keep him in your starting lineup moving forward.
In the meantime, if you own Knowshon Moreno, all you can really do is just sit him on your bench until McGahee cools down. John Fox either has Moreno in his dog-house or really is just sticking with the hot hand for now. Either way, Moreno is not getting enough touches. Don't waive him, but he'll have to take up a bench spot for now.