Scenario 1
The shift handover nobody documented.
A non-practitioner reads the ERP and concludes that the problem is quality. A practitioner asks to sit in on the 6 a.m. shift handover. Three minutes in, they catch that the outgoing supervisor is describing a process adjustment verbally that has never been written down, and that new hires on the incoming shift are nodding along without repeating it back. The quality variance shows up three shifts later, on the incoming side. The ERP never saw the cause. The handover did.
What the practitioner did differently: went to the floor before opening the data.