Statistics can vault a running back into consideration for the Pro Football Hall of Fame.
They are not everything in every case, of course, but if you're the the NFL's all-time rushing leader at this point in league history, the case for consideration might not require going much deeper.
Martin was one of the five players selected for enshrinement. Bettis did not make it this time; he could in the future. It's tempting to evaluate each Hall class as though it reflects a definitive assessment of which players do or do not belong in Canton. But with only five spots for 15 annual modern-era finalists, the process actually plays out over many years.
The best usually candidates get enshrined, and when they do not, they qualify for special consideration by the seniors committee.
Back to the backs. How a runner runs also counts for something. Earl Campbell, one of the most punishing runners in NFL history, earned enshrinement with stats virtually identical to those for Alexander. I was not yet a Hall selector when Campbell was enshrined, but his running style and how it affected his longevity presumably worked in his favor.
Alexander becomes eligible for consideration in 2014.
The chart ranks backs by where they rank on the all-time rushing yardage list. I've also included information for receptions and, in the final column, the number of Pro Bowls and first-team Associated Press All-Pro selections, available on Pro Football Reference. Other factors -- impact as a receiver, postseason success, etc. -- also come into play.