Yup. Again, if he’s an introspective person - and he seems to be that - Dunne did him a huge favor by mapping out for him exactly what he needs to work on.
McD’s main issue may just be that he’s a slow processor - we all know the type. He can coach during the week but sometimes has trouble making quick adjustments and decisions in the heat of the moment, which seems to cause him to tighten up. But if he can fix some of those issues and get better at relating to his players (there are plenty of professional development consultants who specialize in this kind of coaching), he can emerge a much better coach.