I dont know if I go that far. They won a ton of games and championships together. Brady was the man on the field but bb was the brains as hc. It’s probably appropriate to give Brady more credit since he’s the guy on the field making it happen.
20-21 is Belichick’s record as a Patriot without Tom Brady. Before this year the Belichick backers (or Brady haters) would give you the 13-6 W/L mark for Belichick without Brady because they didn’t want to include 2000 (5-11), but sorry that year counts too.