Allabout............I think Duke J. would be a good example.....enhance natural ability....agreed.This. There’s only so much you can teach a rb. Maybe you can teach how to hold the ball better, maybe you can teach him to run a little lower. But that’s about it. The things that make a good RB ( instincts, vision, tackle breaking ability, agility, speed) cannot be taught. So as a RB coach your main job is to find guys with those characteristics.