Sometimes perception messes with reality, though. In 2018, the average NFL team rushed for 1,818 yards. For players, 0 had over 1,500 yards, 9 had over 1,000 yards. In 1998, the average NFL team rushed for 1,803 yards. For players, 1 had over 2,000 yards, 3 had over 1,500 yards, and 20 had over 1,000 yards. In 1978, the average NFL team rushed for 2,269 yards. For players, 0 had over 1,500 yards. 11 had over 1,000. The running back situations now look like they did in the day of Csonka/Morris in Miami on offenses that have realized that using athleticism and speed is an easier win in the current era than over-massing up the middle, so that's where offenses are built, yet still a team needs quality backs to run up just as many yards as the peak of the single-back era in the late-90s.