“George R. Terry (1909–1979) was the first to call his book Principles of Management... Terry’s elements included planning, organizing, directing, coordinating, controlling, and leading human efforts. Later, Terry combined the functions of directing and leading human efforts into an ‘‘actuating’’ function and stopped treating coordinating as a separate function. Terry defined a principle as ‘‘a fundamental statement providing a guide to action,’’ and his principles, like Fayol’s, were lighthouses to knowledge and not laws in a scientific sense.”