Shop floor productivity fell after we installed better equipment

What we told them

When output falls after a capability increase, the bottleneck moved and nobody re-planned around it. Faster machines upstream simply build inventory in front of whatever is now the slowest step, and that queue hides as "busy". Walk the line and find where work is waiting, not where people are working. Listen to the operators properly — they usually know exactly where it now jams and are rarely asked.