Shortening product life cycles and constant evolution of international products and technologies are posing major challenges to businesses. Not just start-ups, but established businesses too are having to constantly evolve for keeping up with new trends in products, services and technologies. With innovation becoming a buzz word, going back to school to keep up with, if not go ahead of the curve, is seeing top managers and CEOs undertaking courses to acquire new skills—‘retooling’, in corporate jargon.