Lean construction techniques have been adapted for construction in the last 20 years from the automobile industry. Lean basically means to build construction projects as cost-effectively as possible and minimize waste. Adopting a lean approach to construction has been received well by some contractors and resisted by others. This case study private developer has recently attended a lean presentation by a college professor and is on the fence about whether to require her open-book time and materials (T&M) project to be built by a lean contractor advocate. She is interviewing two perspective general contractors. A. GC1: Argue why your company has always built in an economical fashion, even if it was not labeled as "lean." Your construction firm has been successful in securing both competitively bid and negotiated projects and is returning a fair profit. Use concepts such as preconstruction services, constructability reviews, value engineering (VE), total quality management (TQM), vetting best-value subcontractors, cost and schedule controls, foremen work packages, earned value, zero punch list, zero time loss due to safety accidents, and others to pitch your company to this client