
26 ◾ The Performance Mapping and Measurement Handbook
2.7.3 Disruption Vulnerabilities
Enterprise- wide physical networks are often vulnerable to disruptions in
material flow. This observation is especially true if networks are global
in nature, tightly coupled, and have little associated inventory buffering
capacity. Ironically, many physical materials networks have been made more
vulnerable to disruption by Lean improvement practices, especially just- in-
time (JIT) delivery practices. Admittedly, Lean JIT delivery systems are very
efficient as long as everything is going well. Yet, they also potentially repre-
sent highly fragile distribu ...