As we go through the different position groups on the team, we are determining where they are in relationship to the average. Of course, there are any number of ways that we can do that. We are most concerned with the running attack as a whole, but we will also look at individual backs.
In general, most teams employ two backs fairly heavily. So, focusing on the primary back is often misleading. We will look at overall team performance and then team performance based on the two best backs. In those cases, we can look at both rushing and receiving out of the backfield.