Also in terms of the Colts and Lions new hires at the Head Coach Position or respectively former Pats OC Josh McDaniels and Pats DC Matt Patricia:
http://voxday.blogspot.ca/2018/02/th...belichick.html
The secret of Bill Belichick ... SUNDAY, FEBRUARY 04, 2018
" ... (Bill) Belichick is the leader and the tactical genius, and (Ernie) Adams - New England Patriots
Position:Football research director is the strategic brain.
He is a statistics quant who "helps the coaching staff" by writing the weekly game plans which Belichick then implements. In game development terms, Adams is the designer and Belichick is the producer. That's how the Patriots are able to completely change their style from week to week. That's also why it has almost been irrelevant who has been serving as offensive or defensive coordinator over the years, and why very successful OCs and DCs have struggled after leaving New England...."
Ernie Adams:
https://en.wikipedia.org/wiki/Ernie_...ican_football)