Hacker: Can they all type?
Sir Humphrey: None of us can type. Mrs Mackay types: she's the secretary.
(Yes, it's a comedy show, but the titles are correct)
Yes, Minister was fed leaks from British government that became plotlines.
Thirty years after, when the official papers of the time were released, what do we discover..?
https://www.theguardian.com/uk-news/2014/jan/03/french-bomb-...
By contrast he Chief of Staff in the White House is a cabinet-level "Official" and it's not even a requirement that the President have one. That should be an indication:
>"The duties of the White House chief of staff vary greatly from one administration to another and, in fact, there is no legal requirement that the president even fill the position. However, since at least 1979, all presidents have found the need for a chief of staff, who typically oversees the actions of the White House staff, manages the president's schedule, and decides who is allowed to meet with the president."[1]
[1] https://en.wikipedia.org/wiki/White_House_Chief_of_Staff