I don't argue too much with people about the legitimacy of PFF grades because I think some of the concerns are valid, but what you're saying I dont think is completely true. I'm sure PFF has access to the all 22 early, and likely gets more tools than that from the NFL for their grades. PFF has a partnership with all 32 NFL teams, D1 college teams, the CFL, and most major sports media companies. I agree completely that they are grading somewhat blind as they are missing a lot of context in terms of specific play calls and assignments, but they have a lot more tools to work with than the average fan watching at home.