If I read the email I just got correctly they are (at least in Beta) looking for 'hard core' managers. In my mind that means managers who log in daily, always check the player changes and new player lists and are active in transfers and squad building. Additionally they are looking at managers in here and 'Discord' who are active in publishing comments and asking/answering questions.
Further down the line the actual game is elite and the call is out for elite managers. Who are they? Managers who win trophies and league titles. Managers with a proven track record of success, not in managerless game worlds, but in game worlds where you are up against real life managers.