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"There was never a day when Jimmy was in a bad mood or he wasn't there to help you ... never," Roenick told NHL.com. "His whole life was devoted to making USA Hockey the best it could be, in everything. It's crazy how unfair life is sometimes. They're going to replace him, but he's a big piece of American hockey that can't be replaced.
"You can't replace the magnitude of what he put into it and how he felt about it. He's one of the most important pieces of USA Hockey, bar none."
Roenick pointed to the success Johannson helped the United States enjoy while serving as general manager the past nine years at the World Junior Championship; the U.S. won three gold medals (2010, 2013, 2017), and three bronze (2011, 2016, 2018). He was also on the management team in 2004 when the Americans won gold in Finland.
"USA Hockey is a superpower in hockey now, and a lot of that has to do with his dedication and putting together the programs that developed these kids and developed us in working with the coaches, the referees, and in dealing with the parents," Roenick said. "It's amazing how much dedication he had to making sure that kids not only just developed in the game and got better, but loved it.
"He made kids love the game and when you love the game you work harder at it, and when you work harder at it you get better at it, and that's why we're a superpower."