The need to understand chaos and complexity in organisations has particular importance for health which is bedevilled by the complexity of organisations and the sometimes chaotic nature of its core activities. This article seeks to explore these issues in the context of one of the key functions which is expected to hold together this diversity: Human Resource Management (HRM). An exploration of the nature of HRM in health care as it has evolved indicates that in order for it to have a pivotal role for the future it will need to rethink this role in the changing paradigm which is now emerging; in so doing it could develop as the organisational intelligence for health care in the future facilitating organisational learning and creativity.