The quarterback runs too much, which takes away carries from the backs and puts him at risk — the key factors in Barkley's failed pursuit.

Barkley became only the ninth player in NFL history to rush for 2,000 yards last week against the Cowboys. He’s at 2,005 — exactly 100 yards shy of Eric Dickerson, who set the mark of 2,105 in 1984 with the Los Angeles Rams.