Youth is not necessarily a negative. The Blues traded Elliott because they felt Jake Allen, 26, was ready to be their No. 1 goaltender full time. Defenseman Colton Parayko, 23, and forward Robby Fabbri, 20, impressed as rookies last season. Fabbri had 18 goals and 19 assists in 72 regular-season games, then four goals and 11 assists in 20 playoff games.
"I think the game is getting faster, and youth is being served," Armstrong said. "I think we were going to transfer to this regardless."
St. Louis still has lots of experience and depth. They signed forward David Perron, who played for the Blues from 2007-13 and whose offensive production should offset the loss of Brouwer. They have Berglund, Steen, Jori Lehtera, Jaden Schwartz, Paul Stastny and Vladimir Tarasenko, along with a solid bottom six. They have a strong defense.
Tarasenko, 24, could play an even bigger role.
"He'll be really good, and he expects to be really good, and we need him to be really good," Armstrong said.
Tarasenko was fourth in the NHL in goals last season with 40 and tied for 12th in points with 74. He absorbed a lot of blame in the Western Conference Final, when he was held without a point against the San Jose Sharks until he scored two goals in the third period of a 5-2 loss in Game 6. But he had seven goals and six assists in 14 games in the first two rounds.