Final answer:
The project manager has the least authority in a flat organizational structure.
Step-by-step explanation:
The project manager has the least authority in a flat organizational structure. In a flat structure, there are minimal levels of management, and decision-making is decentralized. This means that power and authority are distributed among the team members, and the project manager may have limited control over resources, budget, and personnel compared to a traditional hierarchical structure.
For example, in a project with a flat organizational structure, team members may have the freedom to make decisions and contribute to the project without needing constant approval from the project manager. They can work together in a collaborative manner and have a shared responsibility for the project's success.
It's important to note that the level of authority can vary depending on the specific organization and project. Some flat structures may give project managers more authority than others. However, generally speaking, a flat organizational structure provides the project manager with less authority compared to other structures.