Trent Dilfer is the main guy behind QBR. He created it so that he could justify his career. The guy is walking, talking pile of garbage. And yet ESPiN keeps using him as their go to guy for QB evaluations.
Which is why QBR goes back to 2006 (Dilfer retired after '07). And in the one season he qualified, he was dead last.
He is a douche though.