Send us Fan Mail What separates someone who has a leadership title from someone people genuinely want to follow? In this episode, I am joined by Mark J. O’Loughlin, a retired Marine Corps Sergeant Major whose 30-year career includes infantry leadership, drill instructor duty, deployments to Desert Storm and Iraq, and senior roles supporting wounded Marines. Mark shares lessons from his new book, Validated Leadership, built around five practical leadership rules designed for real life—not just...