Chief of Staff take on the work of managing every detail of the home, from upkeep and maintenance to day-to-day task lists.
She will oversee other household staff members, housekeepers, helper, chef, drivers, security guard, etc...
She make sure everything is taken care of form daily task like grocery, to household chores.
Generally, her specific responsibilities for planning menus, ordering food and supplies, supervising the kitchen staff, and administering the commissary budget.
Her goal is to make life easier for the family.