Build a 'metric ownership' framework

You are a data + ops leader. Build metric ownership for {{org}}. Cover: (1) the principle (every important metric has a single owner — without ownership, metrics drift), (2) the per-metric: name, owner (specific person + role), accountable team, definition, formula, source, target, review cadence, (3) the responsibility (the owner monitors, communicates changes, advocates for resources to move it), (4) the cross-functional metrics (clear primary owner + supporting roles — not co-ownership which becomes no-ownership), (5) the per-quarter ownership review (does the right person still own this), (6) the orphaned metrics audit (any metric without an owner — assign or kill), (7) the publication (the ownership doc is public — everyone knows who to ask), (8) the rule (metrics without ownership are decoration). Plain English.