Bill Belichick perfected a system of coaching over his years and one that entirely worked for him. To be a coach under him in that system you had to buy into his ways, it works when he's head honcho but not when you try to emulate Belichick. He found just the right puzzle pieces and made them work. He didn't need the hot up and coming coaching talent.
It's very simple when you think about it.
Bill Belichick perfected a system of coaching over his years and one that entirely worked for him. To be a coach under him in that system you had to buy into his ways, it works when he's head honcho but not when you try to emulate Belichick. He found just the right puzzle pieces and made them work. He didn't need the hot up and coming coaching talent.