A manager is someone who handles the day to day business dealings on behalf of an artist or band. The artist is in charge of creating the art and usually has an overall vision for the project, but it’s the managers’ job to take that vision, map out a viable plan, and execute it. A manager is also kind of the ring-leader of the business. Meaning agents, lawyers, publicists, business managers, promoters, labels, etc. don’t make substantial moves without conferring with the manager since their word is as good as the artist themselves.