In our recent study published in the Journal of Information Technology, Ali Ergün, Manfred Baer, and Ralf Plattfaut investigated the question how leadership must evolve once AI becomes a stable part of the team. Drawing on an in-depth case study of a large German insurance company with more than 5,000 employees and over 3,000 daily GenAI users, we explored how increasing GenAI proliferation affects leadership at the team level. Our findings reveal a clear distinction between short-term and mid-term implications, and it is in the mid-term where the real transformation unfolds.