Former Marine Corps lieutenant Drew Humphreys knows a thing or two about leadership. Before joining the business world, he was a platoon commander in Afghanistan, in charge of 36 Marines fighting the Taliban and maintaining a vital supply route through Helmand Province. He had to reconsider everything he knew about being a leader when he was forced to divide his platoon and give control over to other commanders. It was then Humphreys realized the surprising connection between this successful decentralized management model, and how we manage machine learning in business. His resulting leadership strategy offers three lessons on building a more effective team that every manager can learn from.