Earlier this week, I wrote a column the season after rushing the football 390 or more times. Including , who recorded 392 carries in 2014, a total of 10 runners had reached 390 carries in a single season in the era (Eric Dickerson is on the list twice). Admittedly, that is not much of a sample size for almost 50 years of data. As a result, I took things one step further to see if there was any...