Why Can't the Defense Stop Elite QBs?

[Keith]

Starting a new thread here since the other one is focused more on the offense.

Wade Phillips' defense has performed wonderfully against the average and mediocre QBs of the NFL (er, except you, Chad Henne. Not sure what happened there).

It has been atrocious against the likes of Drew Brees, Aaron Rodgers, Tom Brady, and Peyton Manning (and if I pull out my crystal ball, maybe Andrew Luck too). Hard to feel too bad about that since these guys are Hall of Famers in the making, but if the Texans are going to win a Super Bowl against QBs of this quality, they need to do a better job against them than allowing 4+ passing TDs per game.

Wade likes to blitz and play man. Good QBs can read a blitz. So how do the Texans adjust? Or is different personnel needed? Or when the Texans play these guys again, should Kubiak just assume the offense needs to score 5 TDs to have a shot?