I just think the game is changing where offenses are allowed to do whatever they like. If a team has an "off" day and only scores 40, they probably lose because there is very little discipline with kids these days, and they don't want to play defense because it is hard. They just want to run free and toss the ball all over the place and even if there is an incompletion there is a great chance that pass interference or targeting or roughing the passer will be called. Even "good" defenses often give up 40 points, and that makes it harder to be consistent.