What Belichick does best and likely enjoys the most is coaching football, building a team and preparing it to win a game. Why would he want to go upstairs and not coach?
With Bob Kraft having managed to put the toothpaste back in the tube after the conflicts and controversies of last offseason, what you’re going to see is BB remaining as head coach and head of football operations but have less oversight and control over certain aspects of the team in order to lessen his workload and transition to when he does retire.
This process is already underway. This is Josh McDaniels’ offense. Belichick has input, but control and authority has been delegated to Josh. I’ve also noticed hints that personnel matters may have been transferred to Caserio as well such as the unusual chaos around the cutdown to 53 and the days that followed and the confusion surrounding the pick Cleveland sent back in the Gordon trade. It looked like BB stepped in to remove any conditions attached to the pick before the trade was finalized.
What’s the hurry? In 5 years, McDaniels and Caserio will be roughly the same age BB was when he took over as HC. McDaniels is already making HC money and I would not be surprised to find Caserio is already making GM money as well. This is the advantage one of the NFL’s highest revenue teams has over its competitors: there is no front office salary cap. They can pay these guys what they must to secure a smooth transition.
In 5 years, Brady’s successor will be found and already running the huddle as well. I would have bet you just the opposite last offseason, but Belichick is going to retire with the Patriots and his retirement will be after Brady’s.