The document discusses single sourcing and the transition from multiple sources to a single source for procurement. It outlines some hindrances of single sourcing like corruption risks, reliance on one supplier, and the need for supplier development. Characteristics of an effective single source include motivation, flexibility, innovation capabilities, cost reduction over time. The document then describes analyzing a company's product portfolio to determine sourcing strategies and selecting suppliers based on objective criteria like leveraged contracts and quality/delivery requirements rather than just price.