This article presents part of the results of a survey led in the ULB (Université libre de Bruxelles) in 2010 amongst full-time academic staff (with both teaching and research missions). The purpose of this survey was to better analyze the teaching mission of this public and to allow the authorities of the University, as well as the actors concerned by the support to students and teachers, to better know the needs and the reality of the academic staff missions in the University. The authors will attempt to specifically answer two questions relating to the teaching evaluation: on one hand, which would be the best process to acquire teaching competences (the students feedback being one possible), and, on the other hand, which are the perceptions of the academic staff regarding the promotion of their teaching mission in their career evolution.