In post-merger integration, both human integration and IS integration play a crucial role. In the heart of both of these, lies the integration of the IS personnel. In this paper, we review the literature relevant to IS staff integration in order to explore the opportunities and challenges the IS personnel faces during post-merger integration. The challenges and opportunities the IS staff faces during postmerger integration stem from (1) the merger situation, (2) the IS personnel as an occupational group, and (3) the managerial interventions. A conceptual framework integrating these elements and studying their interdependencies is formed.