"Under functional management, the old-fashioned single foreman is superseded by eight different men, each one of whom has his own special duties…" "…they are able not only to tell the workman what he should do, but in case of necessity they do the work themselves in the presence of the workman, so as to show him not only the best but also the quickest methods."

— In our words · Source: The Principles of Scientific Management (Frederick Winslow Taylor)