Excellent points! Sad to say that most of the fans just don't see this, and keep asking what is wrong with the defense.
Before Yesterday Jerry Hughes one sack, Kyle Williams one sack, Marcell Dareus one sack, Mario Williams three sacks in seven games. After yesterday Jerry Hughes getting two sacks he now has three sacks, and nobody else had a sack.
Kyle Williams isn't Pat Williams, and one is a space eater while the other is a quicker, faster gap penetrator. The same thing with Dareus, as the team didn't spend a #3 overall pick on the guy hoping he is a pure gap controller. If you ask a DE that weighs 254 lbs to constantly take on a 300+ lb OT, and perhaps be chipped by the TE, RB he won't ever get to the QB. Because that same thing is happening on the other side to the heavier 292 lb DE.
That wide nine defense put Hughes, Mario on the outside of the OT's shoulder which gave them a faster path to the QB, and made the offense spread out. Thus leaving wider gaps in the line, and when the LBers stepped up to plug those gaps pre snap the O linemen don't know who is coming and who isn't. This scheme clearly allowed the defense to get more pressure on the QB more often while also helping the secondary because the QB was forced to make reads faster, and get the ball out faster. Thus forcing the QB prone to making more mistakes.