He seems to be an authoritarian person, very strict and self-disciplined. He once told that his daughters have to speak formally with him because he attaches particular importance to fine manners. Another rumor is that he once scolded at Luca Toni at Bayern during dinner because of Toni’s missing table manners.....
But that's at least not weird in the Netherlands. I don't know if it's standard educational practice, but I've also heard that it's not very uncommon.
Still, he is definitely an authoritarian person.
To be fair, he has changed his behaviour. He appears to be much more relaxed nowadays than in his time at Bayern.
The way english journalists are addressing him (calling him more or less casually "Louie"), he wouldn't have tolerated that in Germany (but again, german culture is in that respect different to english culture).
Now, he is accepting that. That shows to me, that even in his age, he is quite able to adapt himself to a new environment although he stands by his basic traits (authoritarian, disciplined ect.). That's a big plus in my eyes.
He is extremely honest. He doesn't blame injuries and other misfortunes when he loses a game. He is very focused on getting the team play the way he wants them to play as he is very confident that it is the way they will win.
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In that respect he should be an idol for every manager. He also doesn't take every opportunity to criticize the referee (unlike Mourinho e.g.).
I like him, considering how good the dutch are at learning language and obviously his english is good, would like it to be slightly better so he can really start giving some chat in interviews.
Its a shame not to see him on the sidelines! He did it a bit for Holland so surprised he doesnt ever come down for Utd.
That surprises me also. But maybe he tries to keep calm, focus more on the things he can actually influence. It shows again that even in his age, he is still changing and trying things in a different way.