So in my league you HAVE to have only 3 running backs AT ALL TIMES and start exactly 2 of them, no more, no less. I currently have DeMarco Murray, Darren McFadden, and LeSean McCoy. So McFadden and Murray have been injured and are extremely questionable in the coming weeks, and LeSean McCoy just suffered a concussion. What should I do? Should I try to swap one of them with Ronnie Hillman who is a free agent and hope that one of the other 2 guys can play this week?