Which principle emphasizes that everyone in an organization should be accountable to only one leader?

The principle that emphasizes that everyone in an organization should be accountable to only one leader is known as unity of command. This concept is essential in organizational management and ensures clarity in leadership and responsibility. When each member of an organization reports to a single leader, it minimizes confusion and conflict about authority. It helps to establish a clear chain of command, which enhances the efficiency and effectiveness of decision-making and task execution.

In a context like fire service operations, unity of command is crucial because it ensures that personnel receive consistent guidance and directives. This is especially important in emergency situations where rapid decisions need to be made. When individuals have to answer to multiple leaders, it can lead to mixed messages and hinder the operational effectiveness of a team.

The other options relate to different organizational principles; accountability refers to the obligation of individuals to report on the status of their assigned tasks, team dynamics focuses on how team members interact and collaborate, and structural integrity pertains to the robustness of the organization's framework. However, none of these directly indicates an emphasis on a singular point of authority like unity of command does.