" It is hard to realize today that “government” during the American Civil War a hundred years ago meant the merest handful of people. Lincoln’s Secretary of War had fewer than fifty civilian subordinates, most of them not “executives” and policy-makers but telegraph clerks. The entire Washington establishment of the U.S. government in Theodore Roosevelt’s time, around 1900, could be comfortably housed in any one of the government buildings along the Mall today. "

― Peter F. Drucker , The Effective Executive: The Definitive Guide to Getting the Right Things Done