In this article, I discuss how to achieve the promise of Lean and Agile methods by integrating the two approaches in a way that manifests the promise of each. In particular, Lean suggests we should focus on delivering business value quickly by creating a system for effective and efficient development. Agile informs our design of this system by attending to teams, creativity, and collaboration. Both advocate a continuous improvement of methods via feedback and reflection. I first present the key concepts and approach for accomplishing this and then examine the impact on management when implementing them.