When you show this to the manager, he will choose between 1) having several reports that he can easily supervise and keep busy, 2) lose some reports and instead

When you show this to the manager, he will choose between 1) having several reports that he can easily supervise and keep busy, 2) lose some reports and instead having you become a defacto sort-of-equal in discussions about the process. Managers hate the second option because it's a step backwards in their careers. Managers with a stake in the business will be more reasonable.