The Cockroach Movement Is Shaking Up India. Here’s What Every Leader Needs to Learn:

In a classic "Harvard Business Review" article, Abraham Zaleznik contrasted two very different styles of authority. Managers, he argued, take a formal approach and seek order and control. Leaders, on the other hand, are more emotionally driven and seek to drive change. Put another way, managers work through hierarchies, while leaders shape networks. Every organization needs both. Managers provide…