Best-practice organizations share their secrets for rationalizing their supply bases to include only the strongest, best-performing, and most collaborative upstream partners and leveraging those partnerships to reduce cost, improve quality, and increase customer satisfaction in Supplier Relationship Management: Collaboration for Win-Win Competitive Advantage. This report covers supplier relationship methodology, collaboration and synchronization of the supply chain, supporting processes and technologies, and measurement tactics. Included are in-depth case studies of Cessna Aircraft Company, H.J. Heinz Company, Stryker Instruments, and Vectren Corporation.