How is it that Patricia and Vrabel are terrible at Defense, yet Brian Flores got that Miami D playing lights out...
I have a theory ...Belechks system is both known and mismanaged by most of his assistants who leave the pat's.
The reason IMO is the pieces. Belechek can find some 4th or 5th round cat who can do one thing precisely well that powers his defense.
BUT that same person when he leaves the system (under belechek) will not execute the same. Basically its like musical improvisation.
Anybody (patricia, vrabel, that idiot in houston who just got fired) can know or read the music/defensive system, but to be able to jazz it up add a layer of funk and soul that is what the aforementioned cats dont get.
Bill has a relationship with players and an understanding of how to use them that the others dont...
with the possible exception being flores. Look at what he is doing with QB's to effortlessly flip between tua and fitsmagic and not lose either one of them or the team is a rare feat.