"If you want to compare quarterbacks to quarterbacks or running backs to running backs, then I don't think you should be using AV. Because you have better ways to do that," said Doug Drinen, the creator of AV and an associate professor of mathematics at Sewanee. "If you want to compare an offensive lineman from the '80s to a wide receiver from the 2000s, I just don't see what other choice you have.