The document discusses different project management structures including functional, dedicated teams, matrix, and network organizations. It provides advantages and disadvantages of each structure and notes that the best system balances project and organizational needs. A composite structure blends elements of functional, matrix, and dedicated teams tailored for each specific project. Choosing the appropriate structure depends on factors like a project's importance, an organization's project focus, available resources, a project's size, integration needs, and time/budget constraints.