Final answer:
The statement about project managers needing cooperation from people throughout the organization is true. This collaborative approach ensures the successful implementation of a project and necessitates a mix of relationship-building, clear communication, and negotiation skills across flat or traditional organizational structures.
Step-by-step explanation:
Project managers must indeed have cooperation from people in other parts of the organization; the statement is true. For a project to be successful, it's imperative that there is a collaborative effort from various stakeholders across the organization. This includes not only those within the project team, but also others in different departments or roles who can contribute skills, knowledge, and resources to the project.
Project management success relies heavily on the effective participation and buy-in of all levels of stakeholders. It's not solely up to the project manager but the concerted effort of a diverse team that ensures the project plan is well-informed and can be smoothly implemented. In modern organizations that have increasingly flat structures, it's common for collaboration and communication to occur across different levels, making every member's involvement critical for overcoming obstacles and achieving the organization's broader goals.
Therefore, project management is not just about managing tasks, but also about building relationships, effective negotiation, and managing conflicts, which are all facilitated through transparent and open communication.