Janice Kapner, former communications leader at Microsoft and T‑Mobile, shares expert insights on navigating high‑stakes corporate transformation, mergers and acquisitions, and leadership without formal authority. Drawing on her experience leading communications during the largest telecom merger in U.S. history, Kapner explains how transparency, strategic storytelling, and consistent stakeholder communication are critical to maintaining trust, credibility, and momentum throughout multi‑year integration processes. She highlights common leadership mistakes—such as underestimating resource needs and post‑merger execution—and emphasizes the importance of understanding business fundamentals, building cross‑functional relationships, and earning credibility over time. The conversation also explores lessons from launching Office 365 at Microsoft, working alongside Bill Gates, and more.