The document outlines 8 rules for effective supply chain management. The rules are: 1) optimize internal processes before focusing externally, 2) inventory management requires collaboration across the chain, 3) coordination is needed across all players to minimize costs and bottlenecks, 4) time impacts costs and cash flow so reliable lead times are important, 5) customers drive the chain so their needs must be understood and met, 6) smooth continuous flow is preferable to optimize value, 7) take a holistic view to find trade-offs, and 8) information flow lubricates the chain and appropriate technology is critical. Following these rules can improve key metrics like inventory levels, on-time delivery, profits as a percentage of sales.