It is amazing his and their unwillingness to be transparent with the entire ratings system, too. Surely, considering they already partner with Football Outsiders for MUT related things, they can use their statistics to help construct the ratings for teams. In Operation Sports I was running comparisons of how players and teams on a whole were rated vs. their actual performance during the season and there were numerous inconsistencies. The Cardinals had one of the top defenses by DVOA, but was ranked the same as the Raiders (!!!). That that even happens is an indictment on the team OVR system of aggregating the various ratings. Meanwhile, the Ravens somehow had a total offensive OVR of 89 (better than the Raiders and Buccaneers) despite being one of the worst offenses in the league. Considering PFF already has staff looking into the entire league and the players every game, you could use their information in conjunction with the data that Football Outsiders collects to create a more accurate picture of the NFL teams. Instead, the process is kept a secret and how the ratings are used in gameplay is mostly kept a secret.