You can't expect the offense to be superman all the time. That's why you have to have a good defense. A good defense will pick up the slack when the offense is not playing it's best. ie, Denvers defense in 2015 and the Super Bowl. Payton Manning was done. It was Denver's defense that shut down fig Newton and won that Super Bowl. If the Saints had a defense like that you wouldn't need to blame the offense because they didn't play lights out 100 percent of the time.