Mina Kimes names overlooked x-factor for Panthers' all-time awful run defense

In the ultimate team sport, pretty much every element of the game is a total team effort. That said, there are some departments that are more dependent on the team than others. Defending the run is probably at the top of that list, as the Carolina Panthers proved time and time again last season as they allowed the most yards in the league on the ground by a wide margin.

That said, one big reason why the Panthers were so hopeless against the run last year was the absence of their best run defender. Derrick Brown went down with a season-ending knee injury after Week 1, and the rest of Carolina's interior rotation was quickly exposed as the worst in the league - beginning a domino reaction that ended with the Panthers ranking as the worst scoring defense in NFL history.

Here's ESPN analyst Mina Kimes breaking down just how bad Carolina's run D was, and how a healthy Derrick Brown could have made a big difference.