Project managers (PMs) are used to working fairly solo. If you have a PMO of, say, 15 PMs, each of whom is running, on average, five projects, then that's 75 projects that may be going on at any given time in the organization. Are we going to involve senior management in every one of those 75 projects? No. Should we, as project managers, expect that our senior management wants to have intimate knowledge of the status of each of those 75 projects? No.