What describes staff who are on call and work as needed?

The correct choice, which describes staff who are on call and work as needed, is per diem staff. This term refers to employees who are not on a fixed schedule and are called in to work only as required, often based on the needs of the organization at any given moment. These staff members provide flexibility to the workforce, allowing organizations to meet varying service demands without committing to a permanent schedule or fixed hours for all staff members.

In contrast, corporate culture refers to the values, beliefs, and behaviors that shape how staff within an organization interact and work together. Operational staff typically have set roles and responsibilities that contribute directly to the daily functions of the organization, while full-time staff work regular hours as part of their employment agreement. Per diem staff are distinct because they offer a more fluid and adaptable solution to staffing, enabling organizations to respond promptly to changing demands.