After buying, building, and supporting computer datacenters for years, the concept of “giving it all up” and handing over key operating responsibilities to a public cloud provider seemed like such a foreign concept 10-years ago. But here we are, every organization in the world has some footprint in the public cloud whether it’s for Zoom, or Teams, or the like. Most organizations have relinquished email to the cloud, like Microsoft’s Office 365, something organizations felt would never happen because of how “mission critical” email is. Many organizations find themselves 100% or nearly 100% in the public cloud, with most organizations needing to follow suit. But as organizations shift to fully or nearly fully in the public cloud, how they run, staff, and manage I.T. operations also needs to change. This book covers the changing model of I.T., and how organizations can optimize I.T. in this world of cloud and security.