Despite the high relevance of multilingual communication for policy implementation and outreach across regions, not all international organizations have fully-fledged translation services as part of their structures. In multiple institutional settings, translation needs are addressed through alternative channels such as systematic outsourcing and non-professional in-house translation. In these cases, introducing translation expertise for managing translation matters can have a particularly critical bearing on translation quality. This chapter reports two cases of action research in real institutional environments where no in-house qualified translator was initially involved in managing translation. After a diagnosis of translation workflow and quality deficits based on interviews and text analysis, measures were implemented to overcome these issues in English-Spanish translations. These actions included professional project management and revision in the first setting (versus review in the initial approach) and professional translation (versus prior non-professional translation) in the replication study. The positive effects of these interventions were measured through a comparative error analysis of target texts produced with and without expert translation management in each institution. The findings and the longer-term impact of these interventions are then discussed, establishing correlations between profile changes and product quality variations.