By Monday at 09:00, the engineer pulling the OEE deck has spent the better part of a day reformatting Wonderware exports and aligning them with shift logs that nobody trusts. The deck is read out, a few actions are written down, and the meeting ends — five days after the shift that actually lost the time.
The bottleneck isn't the line. It's the latency between the event and the action. The supervisor on the floor knew at 03:00 that the press was drifting. The MES knew it too. But nobody was asked the right question in the right minute, so the loss stacked up across the shift and became someone else's report on Monday.
Engineers who could be tuning the process are instead exporting CSVs and rebuilding the same pivot table every week. The plant has the data — it doesn't have anyone who can read it in time to act on it.