This article presents three important dimensions to consider when analyzing the professional integration performance of professional graduates: the diversity and professionalization nature of young people's pathways upstream of their diploma, the selectivity of professional education courses and the types of labor market covered by these degrees. Although not related to the quality of the education provided, these three dimensions can explain much of the "good results" of a professional degree. This leads us to be very cautious about the evaluation of a professional degree through its insertion performance.