Belichick has changed the game in ways no one can consistently beat year to year. He works 24/7 to perfect every detail. He does what everyone else isn't doing and he keeps changing. If most teams run a 4-3, he switches to what teams aren't running. In every phrase. Brady is along for the ride, he's also a perfectionist and puts in the work.
I would bet we never see another team like them in our lifetimes.
Couldn't agree more and that comment Garrett made in a post game interview "it's hard to win in the NFL" really wasn't an excuse, it was fact. This is a sport that turns over 20-25% of the HC's every season as proof.
What makes Belichick better than anyone else is that they just hope they don't lose key players and he plans on it. There is no other team in the last 20 years that believes in "next man up" like he does. And that "just do your job" isn't a catch phrase, they live that. He understands that players get themselves in trouble worrying about the other guy, we see that all the time and we've seen how that affects our own players.
Reading what his players have said about the tests he gives before game days explains why he's the only one that can change it up and play it anyway you want it. Want a shoot out in KC? OK Want a D game in the SB? OK
People that lay all of this on his QB mystify me. He's great and definitely one of the best to ever play the game but if Brady is on another team and Belichick has to play it with another QB, I believe he will be just as successful. I don't think he failed in CLE as much as he learned.