HBR IdeaCast

Money, politics, family responsibilities, age, ambition, and fear: Some of the topics that matter most to employees are the ones they feel least comfortable discussing at work. But avoiding these conversations can erode trust, undermine psychological safety, and leave leaders making decisions without crucial information. That's according to Christina Wing, a senior lecturer at Harvard Business School, who argues that leaders need to get better at addressing workplace taboos. She explains how managers can create an environment where employees feel safe raising sensitive issues, and shares practical advice for addressing mistakes without defensiveness and helping employees speak up about their ambitions. Plus, how to recover when a discussion doesn't go as planned. Wing is author of the book Unspeakable: The Taboo Topics We Avoid and How to Talk About Them.

How do you lead through a crisis, build an innovative company, and prepare an organization for long-term success? For Kenneth Chenault, former CEO of American Express and current chairman at General Catalyst, effective leadership starts with two responsibilities: defining reality and giving people hope. Chenault, who led Amex from 2001 to 2018, navigated the company through 9/11 and the 2008 financial crisis and shares the leadership principles and practices that helped him steer the company through uncertainty, foster innovation, and build a culture of accountability. Chenault explains how leaders can establish clear priorities when the stakes are high, encourage employees to speak up about problems, and challenge the status quo. He also shares lessons from his own leadership development, including how he learned to become a better listener, how outgoing leaders can set their successors up for success, and why diversity remains a core business commitment. Chenault is author of the new book Equal to the Task: A Life Forged Between America’s Promise and Its Truth.

Envy can damage workplace relationships, fuel unhealthy competition, and leave employees feeling stuck. But it can also reveal what people want from their careers—and offer leaders an opportunity to turn rivalry into growth. That's according to executive coach Stacy Kim, who says there's a difference between destructive envy and a more constructive response that helps people learn from others. She shares a framework for understanding what envy is telling you, how to turn it into action, and how leaders can foster collaboration rather than competition on their teams. Kim is the author of Envy: Why Wanting What They Have is the Key to Getting What You Want.

What makes a great team? It might have less to do with whether colleagues like one another and more to do with whether they’re aligned on a shared purpose. Organizational psychologist and Wharton professor Adam Grant says leaders can build stronger connections at work, foster productive conflict, and create cultures where people feel empowered to speak up. He explains why task cohesion matters more than social cohesion, how to turn differences into a competitive advantage, and why leaders should reward people who challenge the status quo; and also shares practical ways to rethink onboarding, encourage candid feedback, and help employees connect their work to a meaningful mission. Grant is the author of the new book Vibe: The Secrets of Strong Connection in a Lonely World.

AI is advancing so quickly that companies can’t afford to treat it as simply another productivity tool; it is fundamentally reshaping strategy. In this final episode of our special four-part series on how AI is changing leadership, Wharton professor and AI expert Ethan Mollick explains why leaders need to rethink what their organizations are designed to do—and how work gets done. He discusses how AI agents are changing the role of managers, why companies need to experiment rather than wait for proven playbooks, and how leaders can create competitive advantage when everyone has access to the same frontier models. Mollick is author of the forthcoming book Co-Existence: The Next Phase of AI.