i think it was more about not overcompensating for a strength by drawing resources from a weakness to blitz.
new orleans ate us with the short and middle of the field passes. would've been even worse if we had blitzed. secondary simply has to step up and play better than they did. playing on grass won't hurt either.
They hurt us because Brees had too much time and a clean pocket. When we started sending blitzes in the 3rd quarter things changed dramatically, but it was too late.