There are some fans who support teams cause their favourite players play in it. But it’s not as common to change the team you support cause your favourite manager left and personally I think that’s a fair metric too. I really like Jurgen Klopp’s style of play, if he left Liverpool and went to like Ipswich town or something then I would wholeheartedly support Ipswich town over Liverpool. Is that weird?
Might sound weird at first but think about it, a lot of the reason you’re a fan of a particular club or team is because of the players or their style of play. So there’s a good reason to change support for a team cause your favourite manager left