PFF grading system appears unclear

Rouxble said

One former player has an opinion, therefore it is fact?

I would agree that the old PFF was less reliable, but they've brought on more former coaches and players over the year to improve their grades and their advanced analytics for teams. Unfortunately, the public doesn't have access to their best stuff.

Also, as @Snakehead said, Pettis had a decent grade on the snaps he played, which weren't many. Does that mean a team is going to give him a massive contract, because he had an above average grade on 100 snaps? The obvious answer is no, but the writer needed some clicks today.

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It's less about the old and the new. PFF grading is subjective and no team (with sense) will use their grading because when coaches grade their players, they actually know what to grade them on. The addition of former players and coaches doesn't change the fact that without knowing the nuance of the play, their POV (which is currently of the armchair variety) determines the grade. This is what JJ Watt is saying; actual coach's grades and PFF grades don't align because PFF ultimately doesn't know what to look for to grade on. Their grades are "results" based.

PFF is good for objective, analytical data and that's what actual professionals use them for.