project management life cycle theory

After presenting the CEO with your strategy based on a successful joint meeting held with the executive director of research and development and the executive director of sales, the CEO has informed you that in fact she wants you to develop this plan according to the phases of the project management life cycle: starting, planning, executing, and providing closure for a project.

• In your opinion, what are the limitations of the project management life cycle theory?
• How would you improve the project management plans of two other project managers if you were the project manager of their respective projects? Be supportive and constructive