Something (sort of) random here that I want to talk about is I hear a lot "Belichick's disciples always make bad head coaches" and I think that's not necessarily true. For clarity, I haven' heard it that often at CFC but I've heard at a lot of other places not the least of which are ESPN analyst, Colin Cowherd types, etc.
Yes there have been some duds but Bill O'Brien has been at least decent (just as a coach not as a general manager), the Titans have been in a better shape ever since they hired an ex-Patriots player (and with Tannehill as their starter they are REALLY looking good now), and the Dolphins, a team completely lacking talent, have clearly made improvements as it's showing that they are actually winning games now near the end of the season.
And as far "they're good because they learned the Cheatriot ways", that's hard to believe because while not 100% of his disciples were duds when they got head coaching jobs, plenty of them were.
edit: That being said, based on what I've seen, Belichick's disciples tend to have a strong win/loss record against the Pats even when their team clearly isn't as good (think the Lions and the Titans last year, for example), and me think while these new head coaches don't bring the cheatriot ways with them, they are aware of what they are so they know how to catch them.