Final answer:
Staff management exists to support and offer specialized expertise to aid line managers in achieving organizational objectives without having direct authority over primary operations.
Step-by-step explanation:
Staff management exists to provide advice and assistance to those responsible for attaining the objectives of the organization. Staff managers typically offer support and specialized expertise to aid line managers in making decisions and running the organization effectively. They do not have direct authority over the production or primary services of the organization but function to support and improve the efficiency of those who do.