This document discusses the concept of agility in supply chains and agile practices. It defines an agile supply chain as being market sensitive, information-based, network-based, and process integrated. An agile supply chain is distinguished from a lean supply chain by factors like unpredictable demand, short product lifecycles, and an emphasis on availability over cost. The document also discusses how to benefit from demand variance, short time windows, and small volumes through practices like forecasting, modular networks, and flexibility.