In a development of the case study method, a business course has been taught as a series of engineering business cases, with elements of realism engendered by the use of senior engineering managers as moderators of the case discussion. By this means, consideration of the various facets of the cases may proceed in an environment where comment and criticism derive from a lifetime of real experience. It has been found that crucial elements in the successful development of this course have been the identification of a suitable cadre of moderators, their briefing in the organization and evaluation of the case study presentation and discussion, and the assurance that their experience was shared around the group.