Potter is an artisan who did a good job with Brighton working patiently without the pressure, exposure and egos of a giant club. As soon as he joined Chelsea the short term demands and the general mess quickly ate the guy alive. Saving the differences it reminds me a bit of Maurizio Sarri, with exciting displays at Napoli but Chelsea and Juve are different animals. Someone doing well somewhere doesn't mean he can export those performances everywhere.
In the end it depends on the new guys taking over and what they're capable of building. If they can provide the personnel and structures to have proper control on the market, finding the right profiles at the right cost, nurturing a plan step by step, fixing the "behind the scenes" stuff (whatever is going on there) I wouldn't mind going for someone who can develop something special and giving it some time even with some risks involved. But it's a big "if".
If these new guys are similar to the current ones in the sense of "let's give the manager some players he wants" then it could be better to resort to a more industrial model, sign result merchants like Chelsea used to do under Abramovich and build a side with strong defensive organization, discipline and physicality, so we have at least some consistency and stop being a circus. Simeone, Inzaghi, Allegri, etc could be options and some more could appear in that mould.
This is not the model I'd want for United and for some reason I can't see Ratcliffe taking this way, but after a decade of failures we can't expect to be competitive while playing a beautiful brand of football when we can't even do one of these things isolatedly, let alone both at the same time. It's like aiming to fly when we can't even run. This is why I'd avoid a Potter, de Zerbi type of manager doing well at a humble club, unless the new board have it extremely clear that they can provide the right conditions around the manager for it to work.
In my case I'm curious about Nagelsmann and also Hansi Flick. I like the germans' approach and if the club was already defined like let's say Liverpool with Klopp's print I'd give it a try, but it can backfire at United I fear. It could be interesting anyway but in the case of Flick he fell out with the board as they didn't allow him to decide on transfers, if I'm not wrong. If our model is the right one from now onwards (the power remains at the club and the manager is one piece of the system) then it could be problematic as some managers probably wouldn't accept it, but I don't really know.
Once these guys take over and we see what they think and plan to do it will get easier for us to know what we can expect next. I can accept any manager/style being brought if the work is done at every level in a serious, professional manner. Considering how low the bar is at the moment it shouldn't be difficult for them to improve things whether they take one path or another.