The Author is basing this on the premise that Capers/MM are dead set on making the Packers a 3-4 team.. a type of rigid plan with no flex.. in other words he isn't giving them the benefit of being living breathing intelligent coaches.. the types that adapt the scheme to the players.. not force the players upon the scheme.
Go back and look into Dom history as a DC and it will debunk this authors point.. apparently he didn't do his freaking homework. All he would have to do is look at the ever changing fronts that the 1999 Jags ran for prove.
In another point.. he is overselling Hawk as a 4-3 Backer.. Barnett screams a Wil backer in the 4-3.. but not so much Hawk.
People get way to caught up in the technique styles of the Defensive lineman as well.. until they throw the pads on and adjustments are made by both the players and the coaching staff.. it is all speculative talk... so why denounce the concept without much to base it upon.
"The oranges are dry; the apples are mealy; and the papayas... I don't know what's going on with the papayas!"