As the artificial intelligence revolution disrupts and dominates global tech spending, upending companies' plans and the global job market, courage has become a critical differentiator, said Ranjay Gulati, Paul R. Lawrence Professor of Business Administration at Harvard Business School, at NDTV Profit Ignite. In an interview with NDTV CEO and Editor-In-Chief Rahul Kanwal, Gulati argued that companies must move beyond defensive strategies and develop the confidence to experiment, adapt and challenge assumptions.