Most people (and in this case, football coaches) aren't very creative/adaptable. Belichick has proven over and over that he's one of the few that can adapt his systems to the players he has available. Wade was able to do it with his defenses.
I remember them talking to Brian Cox about his stint with the Patriots. Belichick KNEW Cox couldn't cover a bed in man-to-man, so he used him almost exclusively on running downs and either blitzed him or had him play a soft zone on the passing plays he was on the field for.
There was a great article on Sean McVay before he ever coached a game. He has basically turned the NFL on its collective head because he refuses to adhere to the old norms. The Rams are finally playing to the talent level of that roster because of it.