(I wrote this back in May and failed to hit publish for some reason — which I discovered when I wanted to point somebody else to it. So publishing now!)Today the expiry date for a dashboard metric came up. It’s a proxy trailing metric for Something We Care About. The details are unimportant.Tracking it for the last eighteen months has helped us spot some opportunities to improve.In the last six months exploring some of those opportunities has helped us improve month-on-month for the last six mon...