This paper posits that almost all inspectorates are now following, if to varying degrees, a similar overarching ideology and methodology for school accountability and improvement. The first part of the paper provides an analysis of recent changes to school inspection policies across Frontiers. Using Ireland as a case example, the next part of the paper provides an analysis of Irish school inspection policies and practices that appear to mirror other school inspection systems. To test these assumptions, the paper then provides an analysis of a key informant interview with the Chief Inspector of schools in Ireland. The evidence suggests that there is an increasingly convergent approach to school evaluation discernible across all inspection frontiers. Among the many aspects of this changing landscape is the rapid pace at which schools have accepted school inspection frameworks and the emergence of a genuinely co-professional as opposed to co-existent mode of evaluation between the inspectorate and schools.