Purpose The purpose of this paper is to extend the People Value Stream concept further by developing a view of what the world would look like through the eyes of a positive psychology employee-centred lens. The authors hope to provide a frame for further discussion, research and practical application in this area. Design/methodology/approach In this conceptual paper, the authors draw on their collective 120 plus years of experience with Lean and Human Resource Management through leading, teaching, researching and consulting in the area. Findings The People Value Stream concept is extended here by ideating how the “Voice of the Employee” could be used to enhance the existing knowledge of Lean. Relying on a range of cognitive psychological theories, particularly Self-Determination Theory, the authors show how it might be possible to develop a highly engaged workforce primarily by unlocking their intrinsic motivation through a “Self-Development and Growth Cycle”. This cycle is the people-improvement version of the seminal Deming process-improvement PDCA cycle. It can be applied within a job crafting “Personal Cockpit”. The authors also highlight a range of outputs and wider implications that create a pull for team leaders and senior management wishing to move to a real Servant Leader model. It will also help those developing and supporting people-related policies and procedures both within organisations and in trade unions. Originality/value This paper turns the existing literature about people within Lean upside down. To the best of the authors’ knowledge, for the first time in an academic paper, it discusses what would be the implications for the Lean world if the authors truly started understanding and deploying the explicit “Voice of the Employee” rather than just the established Lean “Voice of the Owner”-led Hoshin Kanri approach. The authors show how a lack of knowledge in these areas by the Lean community is limiting Lean’s engagement of people and its sustainability.