A project manager has been assigned to a project and receives the project charter from the project management office (PMO). The document is very clear about customer requests. During Project Scope Management some requirements seem to be different from the ones specified within the project charter.
What should the project manager do?

A vendor informed the project manager that a critical resource will be on a long leave of absence.
The project team reviewed the pending vendor deliverables and identified an alternative solution, but the solution will incur an additional cost. The project is currently on schedule and slightly under budget.
What should the project manager do next?

A project manager is reviewing the documents for closing a phase when the customer calls to say that the project is not generating any value for the company. What should the project manager do?

A project manager has noticed that a specific team member rarely contributes or shares opinions during team discussions. However, the team member is effective at delivering assigned tasks on time.
How can the project manager leverage this?

A lead project manager for an agile project needs to prioritize requirements, define the scope of the initial product, and deliver the approved scope in a series of multiple versions. What should the project manager do next?