Brailsford, who has an MBA, was inspired by the Japanese principle of kaizen (continuous improvement), which had played a starring role in vaulting Toyota to greatness. Speaking with Eben Harrell at the Harvard Business Review, Brailsford explained, “It struck me that we should think small, not big, and adopt a philosophy of continuous improvement through the aggregation of marginal gains. Forget about perfection; focus on progression, and compound the improvements.”