I would trade a 1st for him. It upgrades the RB room in a huge way, and he comes in under cap. 1st and Moss. The 1st is basically a 2nd. We can find a good OL in the 2nd, 3rd, 4th, etc. Bean does not waste picks in the late rounds, so losing a 1st is not the travesty it would be for most teams.
With CMC this offense is ridiculous. He also may get injured less when he is not counted upon to be the main guy in an offense.