They want to be called agent, but "pimp" or "head hunter" is closer to what they do. The parallel with a Hollywood/sports agent doesn't really exist, and to be fair we wouldn't realistically want to pay enough to justify such a model.

They are just CV movers but they often know key individuals within different companies and even provide kick backs. As slimy as they can be at times they have connections that a sterile CV in a pile of sterile CVs just can't have.