 Constrained professional transitions and identity blurring within a sector undergoing restructuring: the case of harnessing trainers 
The study focuses on the driving instructors of the French Horse and Riding Institute who are confronted with a restructuring of the sector and a reengineering of the training. It addresses professional transitions and their effects in terms of identity dynamics, work and/or training relationships. Fifteen semi-structured interviews were conducted. The results reveal transactions between acquired skills and the change expected by the institution, as well as strong tensions between feelings of legitimacy and forms of recognition by others. Misunderstandings about restructuring blurred the reading of work situations for all the actors.