In this talk, Thomas Keil, a management professor at the University of Zurich, and Marianna Zangrillo, a partner at The Next Advisors, dive into the hidden struggles of leadership teams. They share insights from over 100 interviews with CEOs, revealing three dysfunction types: shark tanks, petting zoos, and mediocracies. The conversation highlights how these dynamics can undermine performance, and they offer practical strategies to foster trust, encourage accountability, and transform team effectiveness for better organizational success.