This document discusses organizational structures for managing projects. It describes how firms typically develop organizational structures as they grow, with a focus on specialization. Functional, projectized, and matrix organizational structures are described and their pros and cons for managing projects are discussed. The document also discusses challenges for project managers, including acquiring resources and dealing with uncertainty. It introduces the concept of a Project Management Office to help manage administrative and process issues for projects. Key factors in managing project teams such as political skills, motivation, and conflict resolution are also covered.