They went into the year knowing Montgomery was an available RB, which is why they only kept 2 (plus Monty, 2 on the PS, Ripkowski, Cobb, FA's, etc.). That plan has been confirmed publicly by McCarthy and the fact that Monty has proven to be an able RB supports that plan. Their top 2 guys went down for significant periods, but even with that, the RB position didn't hurt the Packers last season. They were 7th best in the league in Yds./Att.