Looking for comments...
Trying to figure out the current thinking regarding defensive game-planning in a pass-happy NFL. I'm no football coach and never played in an organized league, so I understand that smarter people than me are making these decisions. But hear me out.
Why 3-4? Seems to me that a few things have been trending for some time: Receivers are getting bigger and running backs, with few exceptions, are becoming obsolete. Quarterbacks are bigger and quicker on the release, and every NFL quarterback can carve up a zone D on a 7-step drop and 5 or 6 seconds to survey the field.
Why not 6-2-3? Six down linemen, 340 lbs, 300 lbs, and 270lbs from middle out, two 220-250 lbs linebackers, and three 200 pounders in the secondary. The linebackers would be of the hybrid style that can play run or pass, and there are six guys going for the QB on every play. This means the offense has to keep at least six guys in to block, plus the running back. That's 7 behind the line and up to four running patterns against 5 in the secondary. The quarterback gets three seconds to throw, routes are shorter, and no one gets beat deep. A good tackling team should theoretically hold completions to short gains and the D-line will rack up the sacks. A poor tackling team might get beat on YAC though.
Of course OC's will work up something to defeat this. Maybe the run game, but with disciplined DE's setting the edge, smallish running backs will struggle running into a 12-man line. Screens to TE's maybe, but screens usually take a while to develop and the idea behind two extra guys on the d-line should prevent that. And there's one consistent reality with Quarterbacks: if you make them react faster, they turn the ball over more.
I'm tired of watching our D get sliced up by QB's like Tom Brady when a 3 and 4-man rush never gets close to him. These guys are too good, and the secondary is at a huge disadvantage. I don't know. Maybe this makes no sense at all.