According to the PMBOK Guide (Project Management Body of Knowledge) by the Project Management Institute (PMI), a project management life cycle consists of which 5 distinct phases? What does the Project Execution phase entail, and what does the project manager do during this phase? Provide 1 paragraph to cover main points What does the Project Monitoring and Controlling entail, and what does the project manager do at this phase? Provide 1 paragraph to cover main points