Whoever is leading it is almost certainly good at the job they were hired for. They were handed a different one: a mandate that crosses decision rights their function does not control. A mandate parked inside one function can only deliver the part that function already owns.
It is not a dressed-up PMO. It is not process work with a bigger budget. It is not value realization on its own. It is the discipline that sets what must change, governs whether the work converts, and proves the condition changed — which requires breadth across all of those and the authority to bind them at the seams.
Do not name a person. Name the decision rights the mandate requires and the ones it currently has. The gap between those two lists is the finding, and it is actionable: either the altitude moves or the mandate shrinks to fit.