Jobs/Services included under Agents and Managers Category are:
A&R(Artist and Repertoire): They are primarily responsible for finding and signing new talent and acting as the point person at the record company for the recording process.
Artist Managers: They are responsible for the whole artist's career. The services usually include: getting and negotiating deals, finding a booking agent, setting the strategic orientation, receiving and filtering requests, and many others.
Booking Agents: They generally make possible for an artist to perform at a concert venue, getting opportunities of live exposures to the audiences.
Tour Managers: They are in charge of securing everything related to taking artists and their acts on the road will run smoothly.