This trial aims to evaluate the effectiveness of a multi-level, multi-component de-implementation strategy to reduce unnecessary preoperative testing. Sixteen Michigan Value Collaborative (MVC)/Michigan Surgical Quality Collaborative (MSQC) sites in Michigan will implement several tools that have been proven to reduce unnecessary testing at a single site, including clinician education, a decision aid, audit and feedback on performance, and a pay-for-performance incentive. The researchers believe that, through the use of these strategies, there will be a significant reduction in unnecessary preoperative testing during the intervention.