New defensive philosophy that is very similiar to what they had been doing with GW for 3 years has been picked up pretty well so far according to players when interviewed and also according to coaches interviews. So unless both player and coaches are flat out lying AND you have some direct info to Saints locker room and meetings, you're wrong.
The same "shitty defense" is bringing back just 5 guys and 4 of those were on 2009 superbowl winning defense that faced 3 HOF QBs along the way
This preseason the Saints defense created 18 sacks and 71 QB pressure without a ton of blitzes, Panther only had 15 sacks and 54 QB pressures. So if those numbers mean Saints had zero pass rush, then I ask you why is Panthers pass rush so sad and nonexistent?
you'll find out how wrong you are when the seasons starts...