I take issue with increasing a backlog to increase utilisation of resources.
When you try to make every part of a process operate at 100% capacity, you risk creating bottlenecks. There's always some variability in how long tasks take. If every part of your system is running at 100% capacity, then any small disruption or variation can cause a backup. That backup then propagates throughout the system, causing delays everywhere.
When you try to make every part of a process operate at 100% capacity, you risk creating bottlenecks. There's always some variability in how long tasks take. If every part of your system is running at 100% capacity, then any small disruption or variation can cause a backup. That backup then propagates throughout the system, causing delays everywhere.