Redskins grades: Trent Williams does well, but surprises galore from Pro Football Focus | CSN Mid-Atlantic
pretty sure it was the skins-eagles game.
PFF is what it is. Seems like a really detailed, easy to navigate data base. The raw detailed stats speak for themselves. The grades - people can take them or leave them as they choose.
if a person wants to count or discount PFF grades, that is their choice and you cant change their mind anyway.