You can think of business as a multiplayer game between the supply chains of different companies. Companies continuously employ new technology and procedures to enable new ways of purchasing supplies, making products, and delivering products to customers. Companies use their supply chains to lower operating expenses and appeal to more and more customers. The competing supply chains of Walmart and Amazon are an example of this. In the 1990’s Walmart introduced new technologies and procedures that supercharged their supply chain and drove their fantastic growth. Now Amazon is introducing new technologies and procedures to again change how supply chains operate. And it is driving their fantastic growth.