Whitaker served as the Acting Attorney General after Jeff Sessions resigned. Whitaker has practiced law at several regional firms and managed or founded various small businesses. In other words, he has absolutely no qualifications to serve as Ambassador to NATO—unless his main task is to abandon the alliance that is the cornerstone of American-European mutual defense."
Trump doesn't believe people need to be qualified to do the work they do. After all, he's never been qualified to do anything at all, really.