What is a major disadvantage of a functional project structure?

A major disadvantage of a functional project structure is that it can lead to inefficiencies for projects needing cross-department collaboration. In a functional structure, the organization is divided into different departments, such as marketing, finance, and production, each with its own hierarchy and focus. This specialization can create silos within the organization, where communication and collaboration across departments are hindered.

When a project requires input or cooperation from multiple departments, the rigid boundaries may slow down decision-making and disrupt workflow, as teams may not prioritize the project over their departmental responsibilities. This can result in delays, miscommunication, and ultimately impact the project's success.

In contrast, other project structures, such as matrix or projectized structures, encourage more direct communication and collaboration across functions, thereby addressing the shortcomings inherent in a strictly functional approach.