Broncos head coach John Fox said from the NFL combine Thursday he believes running back Ronnie Hillman is "capable" of being an every-down running back but added he needs to improve his physique. The coach added he liked what he saw from Hillman in their playoff loss to Baltimore. "Like any first-year player, you have a lot of room for improvement," Fox said. " ... I think it takes time to grow into the NFL game. These guys coming out of college call it developing a pro body, and with a full offseason, our strength and conditioning people do a great job. It’s all-year-round training. We’re anticipating that he’ll be much improved and be able to play more extended time."