The author of this article is correct. This is the toughest position to rank. I don't think there is a clear #1. I think the only stats you can look at is the qb's lack of sacks, hurries and knock downs. The rb's lanes, not realky a stat, but which team consistently creates lanes for the rb's. And deep passes, meaning the time afforded to the qb. But again, it's hard to quantify.