members of a project

In organizations, members of a project team often report to managers in different business units. This often creates problems in some projects.

• If a project team member that reports to a manager in a department that is different from yours has a schedule conflict that will impact the project that you are managing adversely, and the team member’s manager has informed you that this team member will not be available to work on your project for three months, if you do not control any budget that will allow you to hire a replacement, what would you do to resolve this situation?
• If you are unable to add a new team member (replacement) what other options do you have?
• What are some of the difficulties that are associated with managing team’s members that do not report directly to a project manager?