Darwin Hale is the CEO of Advocate Health Advisors, a company he founded to help people make the best decisions about their healthcare. A decorated officer, Hale served thirty years in the military, ranging from peacekeeping operations to combat with US Special Operations Command in support of the Global War on Terror. Concurrently, in the world of business, he worked with some of the top companies in the fields of healthcare services, information technologies, telecommunications, and personnel management. Need to Know reflects a lifetime of learning what works (and what doesn't) inside some of the most successful organizations in the world.