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" Probably the most daunting challenge in delivering growth is that if you fail once to deliver it, the odds that you ever will be able to deliver in the future are very low. This is the conclusion of a remarkable study, Stall Points, that the Corporate Strategy Board published in 1998.8 It examined the 172 companies that had spent time on Fortune’s list of the 50 largest companies between 1955 and 1995. Only 5 percent of these companies were able to sustain a real, inflation-adjusted growth rate of more than 6 percent across their entire tenure in this group. The other 95 percent reached a point at which their growth simply stalled, to rates at or below the rate of growth of the gross national product (GNP). Stalling is understandable, given our expectations that all growth markets become saturated and mature. What is scary is that of all these companies whose growth had stalled, only 4 percent were able to successfully reignite their growth even to a rate of 1 percent above GNP growth. Once growth had stalled, in other words, it proved nearly impossible to restart it. "
― Clayton M. Christensen , The Innovator's Solution: Creating and Sustaining Successful Growth
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" Consider, for example, IBM’s decision to outsource the microprocessor for its PC business to Intel, and its operating system to Microsoft. IBM made these decisions in the early 1980s in order to focus on what it did best—designing, assembling, and marketing computer systems. Given its history, these choices made perfect sense. Component suppliers to IBM historically had lived a miserable, profit-free existence, and the business press widely praised IBM’s decision to out-source these components of its PC. It dramatically reduced the cost and time required for development and launch. And yet in the process of outsourcing what it did not perceive to be core to the new business, IBM put into business the two companies that subsequently captured most of the profit in the industry. How could IBM have known in advance that such a sensible decision would prove so costly? More broadly, how can any executive who is launching a new-growth business, as IBM was doing with its PC division in the early 1980s, know which value-added activities are those in which future competence needs to be mastered and kept inside? 2 "
― Clayton M. Christensen , The Innovator's Solution: Creating and Sustaining Successful Growth