There’s a rebbe somewhere in my family whose grandfather was niftar and left him the mantle of rebbe. at the time he was learning in a litvishe yeshiva and wasn’t interested in being rebbe and didnt think he was worthy. so one of the chassidim told him “if we can take a cow and make it into a pair of tefillin, we can take a litvak and turn him into a rebbe”
and thats how you make a rebbe 😀