Running back is least of problems, like previous posters say, rbs can be had almost anytime one is needed.
Running back by committee, we will be fine.
IF, BIG IF, we do not get down BIG in games and become predictable, teams will be in their nickel and dime formations trying to defend Landry, Parker, Stills (or Carroo), and Cameron.
Despite the lack of production last year from all but Landry, these guys will be a problem with Gase's scheme.
Spread them out, and even Daniel Thomas can get 80-90 yards a game.
Fortunately for us, I don't think DT makes the team. I hope that he and Williams get cut eventually and we roll with Ajayi, Drake, and a yet to be named 5'9" 225lb bowling-ball veteran.
Running back is least of problems, like previous posters say, rbs can be had almost anytime one is needed.