Rest of Season - Kelley or Beast Mode?

I have Hunt, Jordan Howard, Kamara, and Rob Kelley as my backs. I most likely won’t need to use Kelley, but he is on a good offense that is making an effort to run the ball. But he has been hurt, and not performing when on the field, except for one game.

Marshawn has had a few decent games, a couple touchdowns. I could use him next week during byes when Oakland visits Miami, Kelley plays Seattle which I would prefer not to do.

Who would you choose rest of season. as the 3rd or 4th rb on your roster?