Who on Earth is your number 2 RB? I have read Allen is not secure at all as a starter, so I'd do some research there (I mean, i'm sure i've read that somewhere, but I could be wrong). I myself am in RBBC HELL!!!, so I'd be weary about picking up someone who could be in that situation.
However, I did just pick up Moe Williams after that great game he had last weekend. Tice is supposedly pissed at Bennett, and Moe's stock is rising. But, I probably just made my RBBC Hell only hotter with that move. My other RB's are Hearst/Barlow (OH how I wish they were one person!!) and my "Stud" S. Alexander who is struggling. So, I feel your pain when it comes to running back problems. I am really curious to know who your RB's are, I don't think you mentioned that.