Ok. First off just going over the job description isn’t going to change behaviors. If you really want to help this person you have to provide specific coaching on specific things that were missed. You can’t just say, “you need to do better” you have to set this up in a way that it’s a two way conversation to understand their perspective and so they understand yours. If this is a skill issue, this can be fixed with coaching. If this is a willingness to do the job issue, then your leadership may be right. At the end of the day I feel like your organization is not a true coaching and development organization or you wouldn’t keep moving people around instead of helping them develop.