Seeing as though everyone seems to be on the Leeds bandwagon here is a couple of YouTube videos. 

One is about the ownership of Leeds itself & one is about the coach Bisela & his wide ranging influence on modern football & the worlds most successful coaches.  When you watch this video about Bisela it's important to remember than the dopey eggball fuck bogans at the FFA rejected him.  

https://youtu.be/Esrk6WJ61f8

https://www.youtube.com/watch?v=ClsORIWnbQY

yer he's an interesting Coach.
I read the other day a quote by Messi that he admires him as well and wished to have played under him at club level.
Now Pep joins in giving him great raps.
https://www.goal.com/en/news/marcelo-has-inspired-a-hundred-million-players-guardiola/3nwjsn3a2u21oto2ro54bu5t

How you think he would of done as Australian coach?

pretty hard to comment on the time regards that.
Was he as capable as he's been last 2seasons with Leeds ?
He sure would have been a breath of fresh air back then and who knows what would have been delivered.

I think he would have quickly got frustrated at not having the cattle to play the way he wanted. He is a ‘system‘ guy like Ange. But plays a more up tempo style that requires technique and incredible fitness levels. Unless you are starting with outstanding technical players I’d think it almost impossible to perform to his system after a few international camps. He is achieving big things so far in the EPL with Leeds, but that is after 2 seasons in the Championship playing to the system with a very stable squad.