I understand that preseason games are used to evaluate back-up personnel and that teams are overly cautious about starters getting injured. However, the Giants defense was clearly not ready to compete Sunday. Their defense looked like a preseason game with all of the mistakes, blowing coverages, players in the wrong places, lack of communication, getting burnt. Shouldn't the preseason games be used to iron that stuff out? Especially with so many new and young players trying to get integrated into the defense. Why screw yourself for the first few games waiting for the defense to get it (if they ever do)?