Don't know why people hate Unzue that much. I actually believe he'd do very well.
People hate what they don't know. And also hate those who aren't look perfect solutions
It isn't like they just hate Unzue,they hate on Valverde when he was top candidate,they hated on Eusebio on B team despite being very good coach but didn't show the attractive football they loved and if he was the candidate he was gonna be hated. people also hate on Koeman.
In other words unless it is Jardim,the next coach is hated,a stupid choice,the board is incompetent etc.
I mean look at the poll man,3 of every 4 voted for Sampaoli because of half good season and the guy is leading the team to a downfall in the 2nd half,he is good for a short run but not for a marathon like we face every year but no one liked to look at that.
Do you know why players support the idea of Unzué becoming the next coach? Because they know him and very probably won't need to come out of their comfort zone. Could be that Unzué changes a lot, but I don't think that this is very likely.
I think Guillem Balague was right in answering Q&As:
@GuillemBalague Who do you see as the natural successor to Enrique at Barcelona?
GUILLEM SAYS...
"There isn’t such a thing as a natural successor to Luis Enrique but Ernesto Valverde will fit and tick more boxes than anyone else.
"Juan Carlos Unzue is backed by the players but you have to wonder what that means when players want the continuation of the idea; maybe they don’t want to be challenged in a different way. I have no doubt Unzue is a very good coach though."
Backing Unzue could be for very different reasons,those players are asked about next coach in every interview. if they don't back Unzue and he is hired that will backlash tbh. It is the nice and safe thing to do. I think few also gave some diplomatic answer.
Also assistant coaches doesn't necessarily follow same exact ideas their coaches used.