I wouldn't say he turned them into juggernauts but he turned them into winners.
"A very solid coach" seems a bit of an understatement seeing as he was the first coach to help USA win in 2018 since........................ 2009. That in itself is pretty major. USA was on a 8 year losing streak.
I agree with Darren Appleton, teams don't need a coach, they need a leader. He mentioned Johan being upset with them if they were late to practice or woke up late and stuff like that, I think that's one thing that's missing, the discipline factor. It was treated like a real prestigious event with the utmost importance and urgency. I just don't see the hunger or dedication from anyone on team ROW maybe except for Moritz due to youth.