- Joined
- Jan 14, 2013
- Messages
- 30,388
yeah. We had a whole conversation about marrying the two above lol. But using a measuring cup to put the right amount of milk into a recipe isn't the same as "I'll just watch it with my eyes" lol
PFF looks at each play as a series of individual matchups. And they grade each play based on what they see. But they admit they make no effort to determine scheme responsibilities when evaluating what they're seeing. The problem with that approach is that football isn't a game of individual matchups and understanding scheme responsibilities is central to understanding what went right and what went wrong.
To use an example, let's say we have an inside-zone play. Blythe is facing an elite NT. The scheme calls for Edwards to initially double the NT with Blythe and then to climb to the second level. But for whatever reason, Edwards climbs straight to the second level and pancakes the Mike LB. Without the help he's supposed to have, Blythe gets blown off the ball by the NT, who tackles Akers for a loss. If it were McVay judging this play, he'd almost certainly tell Edwards that the failure of the play was his fault. But PFF would actually grade Edwards positively for the play and blame Blythe for the failure in its grading.
Anyways, I'm beating a dead horse here, but that's why I don't put much stock in PFF's grades. I think their data is great and very useful. But I don't make judgments based on their grades. At best, they're a starting point.