Yards per rush provides a commonly used rushing efficiency metric. It takes into consideration how many rushes your offense had in a game, plus the resulting yards gained from those plays.
One thing to consider is that in CFB yards lost because of sacks count against the total rushing yards (this is different than the NFL).
In this evaluation, we are not looking at how well the Huskers ran the footbal, we are using ypr as a proxy metric to understand if the offensive line is winning, therefore adjusting for sack yardage is not done here.
Additionally, this stat does not adust for yards before and after contact, therefore it is possible the line play is not great, but the running backs are just getting a lot of yards after contact.
In the context of the following metrics, we believe this metric is a great place to start a review.