That we really have an awesome defense that Payton knows can wreak havoc and terrorize QBs? Maybe he just doesn't want to show his hand and they are so good they don't need playing time in goofy pre season games. Hell he didn't even try to win against the Patriots. He was just balls out practicing going for twos. maybe he just wanted to practice what it would be like if we had no pass rush so he could see how his DBs perform when they have to do all the work.........