Most dashboards are data theater. Rows of numbers that look important and change nothing. Before I build any metric now, I ask one question: what decision does this number change, and who makes it. If there is no decision and no owner, the metric does not go on the dashboard. It goes in the archive. When I applied that rule to our main dashboard, eighty percent of the tiles disappeared, and for the first time people actually used the thing. A metric that does not change a decision is a cost, not an asset: it takes attention, invites debate, and rewards nobody. Every number you display should have a person who acts differently because of it. If it does not, you are decorating, not measuring.