(a) Explain why it is important to develop a WBS in defining stage of a project. (b) Explain Brooks' Law. Do you agree with Brooks' law? Why? (c) Explain how resource smoothing and resource allocation reduce flexibility in managing projects. (d) Describe how to effectively manage project stakeholders. (e) When we apply Critical Chain Project Management (CCPM), we should set the buffer size as large as possible to avoid the risk of delay. Do you agree with this statement? Why?