That is is sensible position.
Thing is, is you want attack, run multiple A-gap blitzes, you need a couple of things from your roster:
Guys who can play press man on an island. #27 is that guy, #20 may well be such a guy.
You need a MIKE who knows the system and can keep everyone on the same page in response to the O once the play clock hits 15 (and the speaker in the green dot helmet goes quiet. Kwiatkowski was that guy. We'll see how long he's out.
You need a smart D-line that can play with both quickness and discipline. The faster a guy gets off the less time an O-lineman has to do anything. Ferrell is playing faster this year and that is helping. Without even watching the film he knew what the D-line's problem was Week 1: not staying in rush lanes, not identifying and beating the one-on-ones. With no film to go on into that game, it's easier to understand why that was even if we don't accept it as an excuse.
There is years of tape on Brees with his personnel in that system.
Guenther is who he is, and when he has what he needs his defenses are both good and scary to opposing OCs. The cupboard was bare three years ago, and looking at the roster from the D side, ain't many left, and most gone are out of the League.
And if Brees has his the issues it seems from Week One that he has, this is a game where only dump-offs and screen are an issue.