“…It is generally acknowledged that regionalization has brought changes in public health governance, leadership, power dynamics, system infrastructure, and visibility, as well as new opportunities for service integration and reorientation to a population focus (Braunstein et al, 2000;Kothari and Edwards, 2003). Various reports have highlighted the challenges and negative impact of regionalization on the Canadian public health system (Sutcliffe et al, 1997;Kluge, 1999;Braunstein et al, 2000;Casebeer et al, 2000;Lewis et al, 2001;Frankish et al, 2002;Kothari and Edwards, 2003;Moloughney, 2005;Jensen and Kisely, 2005), and the need for systematic evaluation of the impact of regionalization (Moloughney, 2006). The public health management participants in this study found themselves caught in the power struggle between provincial and regional systems and within the DHA structure itself, constantly justifying their existence.…”