Lets say I am defining AD Admin for my Azure SQL Server instance -- then isn't 'Server Admin' redundant? Because if I have AD Admin defined , I don't see what is the use for having server admin. And we can have an azure group be specified as AD Admin so we can't necessarily say that server admin exists as a stand by admin account in case AD admin leaves the organization, because precisely for that reason we can define azure group as AD Admin. Is there a way we can somehow remove (or not define) Server Admin?