Delivered at the Boston DevOps Meetup, February 15, 2017. In a small company, everyone does everything, so understanding roles is more about knowing who does what at any moment. As organizations grow, specialization creeps in, hierarchies develop, and hierarchies beget managers. Too often, though, everyone assumes they know what a manager does. They don't discuss it, plan it, or make sure that the result serves all participants adequately. Usually, it's the care and cultivation of people that gets short changed in the compromise. This presentation breaks down the roles that managers fill so you can craft the position intentionally and make sure you take care of your people as your company grows.