I'm interested in why you think so highly of Rose. He looks classy but I don't know much about him or his teams
He seems to be a coach who pays big attention to detail without being too radical. He is subtle, and he knows what he wants. His teams always come across as well organized structurally, he is an excellent in-game manager, he works closely with his staff, and is always willing to learn.
He has worked with some of the best names in football, and they've had nothing but good things to say about him.
This is from Moenchengladbach's current sporting director, Max Eberl:
He is a top coach. Unfortunately, if you look at it from our point of view, that makes him interesting for other clubs as well, of course – and I mean the top clubs. I can deal with such desires very well, but I wish that Marco will stay with us at Gladbach for a long time. He’s a key figure, a stroke of luck for Borussia. We are very happy that we could convince him to join our club a year ago. He’s a perfect fit for us, both as a coach and as a human being
He is a disciple of Ralf Rangnick, was one of Klopp's key players at Mainz and has even worked with Thomas Tuchel. Back in 2004 when Rose was still a player, Jurgen Klopp believed he'd make a great coach, and this is from the Liverpool man recently:
I trust Marco in everything, Marco can have any job and could do any job too, he is really the most hyped [coach] of all at the moment, everyone is asking about you.
He has worked his way up from the lower levels of German football to the Salzburg youth teams, senior team and Borussia. Each time realistically exceeding expectations. He was promoted from Salzburg's U16 team to U18 team, to the U19 team, and then to the senior team in a matter of years, adapting seamlessly to each role.
With Salzburg he dominated domestically and was very successful in the youth league - he won it with them, their first time - as well as the Europa League with the senior team, reaching the semis - their best in the competition - and beating the likes of
Lazio, Soceidad, Dortmund and Marseille - an impressive feat for a club of Salzburg's standing. He joined Moenchengladbach who finished the previous season terribly, and has carried that success at Salsburg, doing very well in his first season to secure a Champions League place.
This season, he's found a way to progress in a group that contained Shakthar Donetsk as well as Real Madrid and Inter, prolific teams in UCL in recent years. I don't think he has categorically failed to deliver in any of his gigs so far, favouring attacking football, and getting his team to compete against any team.
Marco Rose said:
We want to be very active against the ball, sprint a lot. We want to win high balls and have short ways to the goal. We don't want to play high and wide, but fast, dynamic and actively forward.
He has got history with young players too seeing how successful he was with Salzburg's youth team and then successfully integrating some of them to the senior team. He has also proven to be able to get the best out of players, a trait that the likes of Klopp's and Mourinho possess.
The likes of Amaduo Haidara - who scored against us, Embolo, Zakaria, Neuhaus, Thuram and Plea are all playing good football under him. He is a coach who makes a team better than the sum of it's parts and his influence is almost always evident.
The most impressive thing for me about him though is how well he carries himself. In the media, during games, you could see he is a very classy man, confident, and carries a certain aura about him.
This is from the man himself:
I don’t think it makes sense to bang out bold goals, but I also don’t find it motivating to always just say: we only watch from game to game. We express it differently: we want to win every game, regardless of the opponent. That might sound boring at first. But we want to have the confidence to do it: always play to win, very actively, whether against the bottom or the top of the table.
Since I noticed him, I've never had doubts about him, and I've seen no reason to. I believe the players would love to have him here, the media would warm to him and he'd be successful.
I didn't say much about how his teams play, but there's many articles about that out there. I could post them too. He is very highly rated by people in football.