So what you're telling us, is that the ranking system that the NFL uses to select draft picks is good, right? Or the system they use to determine the highest ranking players in the league for this or that stat such as rushing yards means that the top player in that stat is the best at it? Tell me then, why top ranked players (namely quarterbacks) are notorious for either never making it to the championship game or the Superbowl, or how number one draft picks end up with crap reps after their first season? Simple answer: there are way too many variables for "stats" to determine how good a player is. They could get injured, their team could suck, they might not synergize with an otherwise great team, they may have an entirely different play style...etc. too much that can't be measured in numbers to take into account.