chief of staff
identifies the leader of a complex organization, institution, or body of persons
White House Chief of Staff
senior aide and political advisor to the president of the United States
White House Chief of Staff
senior aide and political advisor to the president of the United States
Chief of Staff
Chief of Staff for the President of Ghana
Chief of Staff (Canada)
Top official of Canada's Prime Minister's Office
chef de cabinet
senior civil servant who acts as an aide or private secretary to a government figure
Presidential Chief of Staff
Chief of Staff (Philippines)