We aren't a team that is going to have a workhorse RB carry the ball 20 times a game. If James Cook can't handle 12-15 carries then Beane should never be allowed to draft or trade for a RB ever again.
Go sign a power back in FA or draft one in the late rounds if you want but I'm sick of watching this front office use day 2 picks on RBs and still feel like the position is a need.