Favoring orientation to and the participation of design users in the design process, Design Thinking (DT) has a long lineage. With the Cold War's end, the Internet's rise and Stanford University's turn to teaching DT (2005), this 'bottom up', demand-driven conception of design gained new adherents, going on to win mainstream status when advocated in the 'Harvard Business Review' in 2008. While some managers, especially in government, have since adopted DT rather uncritically, it has prompted a schism in design circles - one as grand, perhaps, as that between post-Modernism and Modernism.