Originally Posted by NIBGoldenchild
Forgive my ignorance, what is PFF?
Could be ProFootballFocus.com
They're a decent site in that they provide numbers I haven't seen elsewhere.
But that's about it.
How they track numbers is kind of a "best guess" method.
And they use formulas that are pretty awful to come up with a ranking for "signature stats" such as "Pass Rushing Productivity"
I like the site because they have numbers you don't find elsewhere and because as flawed as they might be, they tally the same for all players so any sort of flaw they do have in tracking numbers is gonna equal out over the course of the season.