This article explores the impact of a Postgraduate Certificate in Teaching in Higher Education (PG Cert.) on new lecturers, appointed for their professional expertise. It focuses on staff perceptions of acculturation into the discourses of university learning and teaching. Drawing on a literature review which reveals (at best) ambivalent evidence of impact, the authors developed a case study investigating impact on staff changing careers into university teaching on the basis of their professional expertise. The data reveal positive outcomes, including the transition into confident and competent higher education professionals.