This is where PFF comes up short. His pass rush rate is way too low. He's tied for 6th among DTs and he bats down a very high # of passes , even blocked a game saving FG. PFF does not take into account the gravity of a play just a win rate. Much like an OL he can have a great win rate and give up a strip sack fumble with the game on the line and have a great PFF score.