It is a great mistake for presidents and other leading executives of organizations having branches throughout the country to chain themselves to their desks at headquarters and send out rigid instructions to those in charge of distant branches and offices. Because a man sits in a palatial office in New York or Chicago or Philadelphia or Detroit and draws a big salary, it does not necessarily follow that he knows better than the man on the spot what ought to be done.... Paul, Caesar, Napoleon did not merely sit at home and issue long-range instructions.