Fantasy football start/sit advice, Week 15: BenJarvus Green-Ellis on the upswing

BenJarvus Green-Ellis had a terrible start to his year with just a 2.7 yards-per-carry average in September, but he's improved over the last two months quite a bit. In his two December games, he's scored three teams with a combined 140 rushing yards.

He's been a little overshadowed by rookie Giovani Bernard, but at least the TDs have made The Lawfirm a low-end fantasy option.

Fantasy impact: The Bengals get a struggling Pittsburgh Steelers defense on Sunday. The Steelers just gave up 105 rushing yards to Daniel Thomas of the Miami Dolphins and they've allowed five rushing TDs in the last six games. Plus, the Bengals were able to put up 113 rushing yards back in Week 2, and the Steelers' numbers have been trending down since then. BJGE won't have a big upside on the road this week since he's in a timeshare, so his owners hopefully have other options lined up.