I think it was more the coverage than the pressure that was effective against the Saints passing attack. That was the thing that surprised me most about the 49ers because the numbers were all about their effectiveness at stopping the run, and suggested teams might have success passing. But right when that game started, their secondary were playing their asses off. I've seen every Saints game this year, and there weren't many times Brees had plenty of time on plays and couldn't find open receivers. That happened several times against the Niners. There was a bit of pressure as well, of course, but more of that seemed to come later in the game.