Funny, Pete Carroll doesn't agree with wist. http://www.sbnation.com/nfl/2013/12/...-nfc-breakdown
And sbnation in same article:More generally, as Pete Carroll put it:
"Our defense is a 4-3 scheme with 3-4 personnel. It's just utilizing the special talents of our guys."
And Greg Cosell in same article:Cliff Avril and Chris Clemons can rush the passer and cover in the flats and do so from multiple angles and platforms (i.e., two- or three-point stances). Bruce Irvin can be a pass rusher one play and a run-in-coverage linebacker on the next. Their linebackers too can blitz, stop the run, cover and tackle.
And from FieldGulls, Seahawks blog:"With Irvin, a returning Chris Clemons, and newly signed Cliff Avril, the Seahawks have three players who can align anywhere in their nickel sub-package. They all have what we call "Joker" ability, the talent to line up in either three-point or two-point stances and rush from different positions and angles.
How will they get the four best rushers on the field considering only one (Michael Bennett) is really suited for the inside over a guard? Look for Cliff Avril at left end, Bennett inside over the center or a guard, Clemons at the right end and Bruce Irvin playing the "spinner" role. The "spinner" stands up and moves during the snap count, meaning he could rush from anywhere.
As for JSO being the source of the 4-3 confusion, let me introduce you to their source on the matter, McCarthy's press conferences:
GBPressGazette is on board:(On defense look) Whether three or four-man look. Lot of same concepts. Not trying to trick anybody. Just getting better at it. We practiced it in OTAs.
They are playing an under front almost all the time now, 3-4 or 4-3 personnel. Difference is who is OLB and role (backer or lineman). This is the less scheme, more personnel he was talking about.Wes Hodkiewicz @WesHod 2h
MM on 4-3: Schematically, it's a lot of the same concepts. We're not trying to trick anybody. We're utilizing personnel.