We are in a new industrial revolution that requires management trainees to develop "action learning" from real experience within business and industry, rather than getting tied up with theory and academia. Business schools seem unable, on their own, to tear themselves away from their largely academic roots and move closer to the realities of today' s business and industry; too often, trainees in business schools find themselves studying hypothetical cases instead of real ones. Furthermore, business schools have been slow to respond to the needs of business. Ttherefore, business schools should allow business executives to set curricula for management trainees that could then be taught by academics. The argument relies on which one of the following assumptions? ['Academics in business schools deal only with hypothetical situations in their business case studies.', 'Academics are not capable of teaching curricula suitable for relevant management training.', "Today's business executives have valuable insight into business that academics in business schools do not have.", 'Academics in business schools have no practical business experience that is valuable.']