Which of the levels of management spend most of their time working with the supervising the employees who report to them?

First-line managers spend most of their time supervising the employees who report directly to them. They are responsible for day-to-day operations and ensure that tasks are completed efficiently. This level of management focuses on overseeing staff performance, providing guidance, and addressing any immediate issues that arise in the workplace. Their direct interaction with employees is crucial for maintaining productivity and morale.