Process Improvement (PI) is an approach for helping organizations to identify and resolve inefficient and ineffective processes through problem solving and pilot testing change. Use of PI in improving client access, retention and outcomes in addiction treatment is on the rise through the teaching of the Network for the Improvement of Addiction Treatment's (NIATx) Model for Improvement. Emphasizing five phases of change, five key principles for change, and four revolving aims, NIATx has taught hundreds of addiction treatment administrative and clinical staff to lead successful process improvement initiatives. This paper draws on experience from NIATx and offers methods and concepts to consider in the teaching of core process improvement tools and techniques.