The person was qualified — in fact, was overqualified — for that position, and there was a belief from the employer that because of that overqualification this person would become bored with the job, would be unsatisfied and would have a tendency to leave, which would be a problem for the employer with respect to maintaining staff and limiting turnover.
La personne était qualifiée — en fait, surqualifiée — pour le poste, et l'employeur croyait qu'elle se lasserait de son travail et finirait par partir, compte tenu de sa surqualification, ce qui poserait problème à l'employeur, s'il veut maintenir son personnel et limiter le roulement.
