How project management influence other departments and functions of this organization

Wal-Mart is the organization Integrate the concepts and operations management principles that you’ve been studying in this module and turn in your one to two page paper addressing the following questions:

How project management influence other departments and functions of this organization (i.e., marketing, finance, accounting, human resources, etc.)?

What are the difficulties or limitations for implementing PERT and CPM in the organization?