Employees who perform functions that advise and assist line personnel are known as: middle managers.
Line managers are having the responsibility for directly managing every employees or teams. In return, they are managed by a higher-level manager on the performance of these employees or teams.
Line personnel have it's formal authority to make policies and take decisions. Staff personnel have the authority to advise the line personnel and make suggestions, but they can not make policy and changes in themselves.
A middle manager is someone who is in a role of leadership position and also reports to it's top management. They operate their team's career progression, communicate decisions from upper management to lower , and adjust workflows, processes, and priorities to align with overall business objectives.
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