why not? not having another RB at this point hurts, but EVERYONE was clamoring about the depth at WR and we'd be losing all these great receivers. Obviously they saw something they liked, and so did the Packers staff. The beginning of the year was more about getting Jordy back going on the field, and getting Cobb and Adams back going off an injured year in which they mostly played. It was about establishing a type off offense they wanted to be able to run when they needed it. I'm not going to argue that they did a very good job with it it, because it mostly stunk, and it's as much on Rodgers' shoulders as anyone. Besides that, it probably had a lot to do with getting younger guys up to speed as well. In a season where Davis, Janis and even now Geronimo Allison are seeing the field fairly regularly, they aren't just sitting on the bench anymore.There was no reason to keep seven wide receivers on the roster though as the coaching staff mostly used only three over the first few weeks of the season.
You could argue they should have had more RB's in camp, but in the end, would they have been good enough to earn a spot? After Crockett, and even to me he was questionable, I don't think anybody did. SO what if they'd have kept them, we'd be in the same position now, a subpar RB available.