We have for years poked some fun at Pro Football Focus for their fool's errand; the grandly ambitious NFL goal of grading every single player from every single team in every single game, and having the grades be balanced, logical and fair, is impossible.
And now we have the more glaring evidence as proof of our point: Cornerback Trevon Diggs.
Diggs leads the NFL with 10 interceptions, three more than anybody else. He is likely a Pro Bowl starter, probably a first-team All-Pro, and presently slated to be a finalist for NFL Defensive Player of the Year. Teams don't throw at him much, and when they do, Diggs - as a centerpiece of a Dallas Cowboys defense that is playing at as high a level as any team in the league, with four takeaways in three straight games - makes them pay.
"A true competitor,'' said Cowboys defensive coordinator Dan Quinn in praising Diggs' personality and talent. "Don't confuse that quiet demeanor. This is a true wolf in sheep's clothing. This guy is a rare competitor."
But ... Pro Football Focus (PFF) is so unimpressed with the overall play from Diggs that of the 117 eligible corners, he is the 89th-ranked guy.
That's right; PFF "grades'' have 88 cornerbacks - almost three per team! - who are better than Trevon Diggs.
PFF could be leaning against Diggs because it has stats that seems to indicate a boom-or-bust element to his game; he's been targeted 88 times and allowed 51 catches (58 percent) for 899 yards (a 17.6-yard average).