This document discusses decision effectiveness and the Decision Effectiveness Toolkit being piloted at NHS Liverpool Clinical Commissioning Group. It provides context on the need for effective decision making to operationalize their Healthy Liverpool initiative. It introduces the Decision Effectiveness Toolkit being developed through the Best Possible Value work stream to help make complicated, high value decisions. It describes how Liverpool CCG is piloting the toolkit to help make a decision around their "Healthy Lung" initiative and the next steps of embedding this approach and training staff to facilitate its use.