Final answer:
Staffing is a managerial function that specializes in hiring and retaining employees, ensuring the number of hires aligns with the organization's size for optimal workforce maintenance.
Step-by-step explanation:
Staffing is one of the core functions of managers in an organization. It involves the entire hiring process, from identifying staffing needs, recruiting candidates, selecting the best match, and then training, placing, evaluating, and compensating them. Staffing primarily specializes and focuses on the retention of employees and effective hiring practices to maintain an optimal workforce. The aim is to achieve the least number of firings and ensure that the number of hirings is relative to the organization's size. It is a crucial function because having the right number of staff in the right jobs at the right time is key to an organization’s performance and ability to reach its goals.