Hail to the Chief was first associated with a Chief Executive on February 22, 1815, when it was played (under the title "Wreaths for the Chieftain") to honor both the belated George Washington and the end of the War of 1812.

Using the term Chief in a job title was traditionally associated with either defense or government sectors.   This article in today's SMH discusses Chief of Staff as relatively new in terms of how it fundamentally frees a CEO/MD's time amongst other accountabilities.  While the position appears to be gaining momentum in tech, if you actively search Chief of Staff opportunities in Australia, there are a few on the major Australian job boards. 

When we re-invent job titles, what's at stake, are we losing a candidates such as COO's during their search for like minded opportunities?