Education has lost one its most important disruptors: Clayton Christensen, PhD and distinguished professor at Harvard Business School. After a successful career as the CEO of CPS Technologies, Christensen returned to school at age 40 to earn his PhD in business from Harvard University. He became a well-known scholar, particularly for his key contributions to our understanding of innovation and disruption. Christensen died on January 23. Possibly one of his most important predictions of disruption playing out in the marketplace is about his own industry: higher education. After accepting an offer from the University of Phoenix to teach online lectures...