What strategy of modern manufacturing is Adam Smith referring to in this statement? "To take an example, therefore, from a very trifling manufacture . . . the trade of the pin-maker. . . . One man draws out the wire, another straights it, a third cuts it, a fourth points it, a fifth grinds it at the top for receiving the head; to make the head requires two or three distinct operations; to put it on is a peculiar business, to whiten the pins is another; . . . the important business of making a pin is, in this manner, divided into about eighteen distinct operations."—Adam Smith, The Wealth of Nations