Organizational Leaders make conscious decisions to approve projects.  These decisions cost the organization precious dollars and resource time.  The projects are investments to stabilize, improve, grow the business.  They are the most important efforts for the organization.  I counsel my clients that these Strategic Investments deserve to be managed properly.  They should have the proper resources following the proper processes using the proper tools.  So who determines the proper resources, processes, and tools? Far too often the various teams/departments within the organization make these choices independently.  As a result there are multiple ways for an organization to manage projects.  A direct contradiction to how we expect the AP team to function.  The results are missed deadlines, budgets exceeded and requirements missed. So why do we need a PMO?   We need a PMO to help our most important Strategic Investments deliver the ROI expected. We need a PMO to set expectations with ALL team members how a project will be managed. We need a PMO so ALL team members know which tools will be used.  You see, we need a PMO because you aren't a Project Management expert.  You are an AP clerk, Network Engineer, Sales Manager.