You CAN get by with two - not that we will, but by keeping at least one, maybe two decent RBs on the practice squad, they can be activated if need be. Beyond that, as has been said, Kuhn has experience there and likely, Montgomery will get reps in practice there too, so in the unlikely event both RBs go down in the same game, they could be used along with the prospect of a one back offense or using a TE at fullback. So yes, it CAN be done.
In my projection in the other thread, I gave my best estimate at all positions, and it came to 52. I chose "3rd RB" as the 53rd spot, and I'm rooting for TWO of the three (Neal, Harris, and Crockett) to beat out Starks.
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