I think we're getting too hung up on "3-4" "3-3-5" "4-3" "5-2"...etc.
IMO, it's more how each guy is used. Jalen Johnson made reference to the fact that sometimes he might rush, other times he may cover the slot or TE. To me, that screams a defense that's positionally flexible to what the offense is doing. CNW is more concerned with flexibility, and athleticism to do multiple jobs on any given down depending on what the offense presents. I remember watching CNW's guys line up in 3-4 one play, later in the game, the ILB with creep to the LOS (hence bigger LBs on the inside) which in essence became a 4-3, and even giving the offense a 5-2 look before watching the OLBs bring heat at the snap.
That's just a fun defense to watch...and probably even more fun to play in. You could tell in the past with our other DCs how teams took advantage of certain personnel (like making Julian Burnett or PJ Davis cover a 6'5 TE, or lining up in spread and having guys with limited mobility cover the sideline to sideline and vertically). I've always thought GT, given our difficulty recruiting war daddies on the DL should have gone to a 3 DL base defense a long time ago. Unfortunately, Al Groh's time probably turned a lot of us off on that...but practically it makes more sense for us given the constraints.
I know this much: CNW ain't scared to move guys around and experiment. We've seen CPJ do it on the offensive side, and it's fun to watch. I'm already excited to watch it on the defensive side.