Review waits that vanish between ticket and merge
A silent queue break can look like slow coding when you only read the cycle chart.
On engineering throughput paths, a change that sits in review while the chart only counts coding time can look like a productivity cliff. The product never asked those people to slow down—the handoff was dark.
Before rewriting the process, walk the path while watching live events and queue ages. Note client-only retries versus server confirmations. Check whether staging shares production identifiers.
Delivery Flow Mapping stays narrow on purpose: one release window, deep reconciliation, a checklist you can rerun after every tooling change so the cliff does not return unnoticed.