Two things about Beanine. He could just be suffering with the Sophomore jinx or someone who is coaching him and trying to stop his fumbles, has basically altered his running style (standing up too straight?) and has taken his natural balance away from him. He is not the same runner he was last year.
At the present time, Hightower is the better back and is playing because he deserves to be in there.
Can we please stop with all the rooting for an individual on this team and root for the team as a whole? I'd like to see both of them in there at the same time, but until we get the O line fixed, neither one is going to set the world on fire.