At the beginning of a band’s life, the band may be self managed, making decisions as a team or allowing one member to oversee the band’s business. At the very least, a band needs a manager(directs the team), a tour manger (takes care of hotel arrangements and logistics), business manager (oversees income, expenses and budgets). These jobs may be outsourced or the band members may find they need to handle management themselves at first.
There’s a big benefit to understanding managment from the band angle. It gives real insight on the business side of music when a band has had an opportunity to manage itself. It also helps bands form a job description for a manager when the time comes.