Every major industry was once a growth industry. But some that are now riding a wave of growth enthusiasm are very much in the shadow of decline. Others that are thought of as seasoned growth industries have actually stopped growing. In every case, the reason growth is threatened, slowed, or stopped is not because the market is saturated. It is because there has been a failure of management.
Theodore LevittThe fact that a consistendy highly creative person is generally irresponsible in the sense that we have used this term is in part predictable from what is known about the freewheeling fantasies of very young children.
Theodore LevittAn industry begins with the customer and his or her needs, not with a patent, a raw material, or a selling skill
Theodore Levitt