On a quest of quality towards which any training organization must strive, this article analyzes the coherence and relevance of the in-service teacher training offer, at the “Meso” level, for catholic school teachers in the province of Hainaut (N = 454). This research aims to provide recommendations for improving the quality of this offer, particularly based on an analysis of training needs. First, the coherence analysis highlights elements of the system where it can be improved, particularly in the thematic and chronological distribution of the proposed training modules. Second, the needs analysis process, based on the results of a questionnaire survey, highlights the relative relevance of inservice training priorities to teachers’ needs.