As far as I know, Zidane rejected Man United's offer at that time because he wanted to rest until the summer of 2022 and his wife did not want to stay at Man United. The chances of Man United being able to sign Zidane are very small because it seems that Zidane will still stick to his stance.
Apart from Mauricio Pochettino, other coach candidates being targeted by Man United are Erik Ten Hag, Julen Lopetegui, and Luis Enrique.
https://twitter.com/David_Ornstein/status/1485525496314187777The last I heard is that Pochettino might leave PSG, in which case PSG want Zidane to take his place. But Zidane himself wants to lead the French national team. It's hard to predict how the puzzle will play out, but the likelihood of Zidane ending up at United is very slim. I think United's ability to sign a great manager will depend a lot on where they finish. If it is top 4, then it will be a plus.
because from the start the target of Zidane was the French National Team.
Actually, I still believe when Rangnick can maximize United he can still survive but at this time many are not sure about Rangnick even though he is just coaching and it can be said that they are just adapting.
For Poche I feel that he is not very suitable for PSG. Even though PSG is still performing quite well, Poche is still not optimal in concocting the club because I think with the strength of the team that is so strong now but Poche can't maximize it