This article outlines a plan for a change project to improve the quality of physical health care on mental health wards. The plan was designed to improve the monitoring and recording of respiratory rates on mental health wards, through the implementation of a training programme for staff. A root cause analysis was used to explore the reasons for the low incidence of respiratory rate measurement on mental health wards, and the results of this establish the basis of the proposed change project and its aims and objectives. The article describes how the project could be implemented using a change management model, as well as how its effects could be measured and evaluated. Potential barriers to the planned change project are discussed, including the human dimensions of change. The article suggests methods to overcome such barriers, discusses the value of leadership as an important factor, and examines the principles of clinical governance in the context of the planned change project.