Monday, 9am. Conversion drops 3.2%. The PM pings Slack: "What happened?"
A data engineer queries the warehouse. A data analyst slices dashboards — segment
by segment, device by device. Four hours later: maybe they found it. Maybe the
drop was systemic and they just burned a morning chasing ghosts.
At $200/hour for a data engineer + analyst pair, that's ~$900 per






