Running back is one of the most glorified positions in football, and there are certain characteristics  that describe quality runners. Whether you are a small and shifty runner like  Barry Sanders or a bigger power runner like Peyton Hillis, there are several  skills that all running backs need to be successful.  A combination of vision, balance, speed and power are all characterisitcs of a back that can be the difference maker.  Click HERE to see the top 10 2011 RBs.