chief financial officer.
Chief of Staff is a proper title.
The primary difference between line function and staff function is accountability. Line functions are typically used for sales and production, while staff functions are used in production planning and marketing.
The title is 'Chief of Staff.' But one might say or write "...the Chief of Staff's responsibility."
The plural form for of the noun chief-of-staff is chiefs-of-staff.
The plural form for of the noun chief-of-staff is chiefs-of-staff.
P.V.Naik is the Chief of Air Staff
Chief of Staff: Donald Rumsfeld Deputy Chief of Staff: Dick Cheney
The answer to that is the president's chief of staff.
The current chief of staff is Rahm Emanuel.
P.V.Naik is the Chief of Air Staff
Incident management personnel organized according to function (i.e., Operations Section Chief, Planning Section Chief, Logistics Section Chief, and Finance/Administration Section Chief) and who report directly to the Incident Commander