While I get the point you and others are trying to make, it's still wrong.
There are definitely SOME things in his background that suggest he has the potential to do it.
He has admin responsibilities as a coach. He recruits. He's a leader and manager of people. It has been suggested that he has helped with fundraising and hiring.
Does he lack experience? Sure but he does have some.
I am not crazy abuot the move, but I think people are overestimating what it takes to be an AD. I am guessing from Cohen's success as a baseball coach that he knows how to manage. If Cohen is smart and has interpersonal skills, that combined with his ability to manage his baseball program means he has all the building blocks in place.
There may be some growing pains as he learns some of the finer points, or he could easily identify his weaknesses and make sure he has delegated those responsibilities to the right persons as he learns. Some of the best executives I've worked with do nothing but delegate 95% of the responsibilities and have a laser focus on the 5% they have identified as the most strategically important. Those executives often do better than the executives that know every aspect of their business inside and out, who sometimes end up basically being caretakers of the organization, as they spend a little bit of time on everything and don't allow themselves time to really grow the strategically important parts.