Line him up with Gurley or Henderson. He can block, take a quick handoff or drift out into the flat and catch passes (he has good hands - better than most FBs) If he bulked up a little this offseason maybe it works situationally.
He knows the playbook inside and out, is good teammate and can be had cheap. He can also play RB if there's an injury. Maybe more effective and versatile than a rookie.
Not sure if he played FB at Texas. I realize there's more to the position than just being big enough. Not all RB's can play FB. Not everyone is Marcus Allen.