This paper explores the role of coaching in enhancing teachers’ key competences for integrating Telecollaboration (TC) in their language course. A total of 23 secondary school teachers participated in this case study as part of the EU-funded project TILA. Quantitative and qualitative data were gathered via two surveys, the first one measuring coaching satisfaction and a second one tackling teacher competences. The results show that teachers highly value coaching to integrate complex pedagogical innovations in their teaching. Participants reported that coaching contributed to an improvement of key competences necessary to implement TC exchanges successfully.