Why Are There So Many Close Games and Lead Changes?

106 games have been decided by one score through the first 12 weeks of the season. That's nearly 25% down from last year when teams were averaging 12.3 points scored in the second half if they were leading at halftime. Teams that are up at halftime outscored the team that was down by 1.2 points, but now this is being flipped. In part, it's because of the way the teams that are trailing are playing defense. They're not like sending out these blitzes and giving up big plays. And then what we see is when the teams are leading, they tend to play prevent defense,. Can we not look at them? Trust me, I was on Tampa