To re-paraphrase a common saying: Half the metrics I track are useless, the trouble is, I don't know which half. Obviously for core business metrics there's a

To re-paraphrase a common saying: Half the metrics I track are useless, the trouble is, I don't know which half. Obviously for core business metrics there's a direct cost associated with measuring, validating, and maintaining access, but even for more technical metrics that's true. The issue is, without a comprehensive metric collection and analysis system tracking multiple metrics, troubleshooting reduces down to a red light / green light level, which is not super useful. Is your site "down" because your uplink has gone offline, your servers, or is it your metric collection system throwing a false positive? Same can be said for business metrics - is revenue down from customer acquisition, deal size, or orders per customer? If you don't track more metrics than the minimum, it's hard to tell.