Broncos coach Sean Payton has attributed those struggles to several factors, including his own scheme and play-calling. Payton has also said Denver might be rotating in too many different players, and he seemed to hint that some personnel changes could be on the way.

Now, some teams are capable of still being productive on the ground in those scenarios. The L.A. Chargers (no surprise under new coach Jim Harbaugh), New Orleans and New England are among the teams running the ball well despite facing eight-man boxes more frequently than almost everybody in the league.