The document discusses different types of contractual strategies and relationships between buying organizations and suppliers. Collaborative relationships involve both parties jointly working to improve cost, quality and innovation, while competitive relationships focus on obtaining the lowest price possible. Subcontracting is described as a tactical, short-term approach where a contractor delegates part of the work to subcontractors but remains responsible for quality and schedule. Benefits and risks of subcontracting are listed, such as gaining expertise but also potential loss of flexibility and control.