"I think we're doing a good job of staying focused, sticking with our plan," Steen said. "As soon as something like that happens, it's always revert back to our structure, keep going, same page all the time, not get off it. It's good."
Steen draws the toughest assignments because Blues coach Ken Hitchcock feels most comfortable putting him on the ice against the opposition's most talented players.
"The reward's there, but he's our best player," Hitchcock said of Steen. "Alex is our best player. So I want him playing against top players. He loves that challenge, he loves that focus, he just rises to the occasion on it. He's a heck of a hockey player.
"He does a lot of things underrated that people don't notice, coaches notice, little things that don't go unnoticed by us. He's one of the most complete players in the League. I think if he would have been healthy, he would have had a real shot at the Selke [Trophy] this year."
Steen's second goal of the game, a wrist shot that he powered through Stars goalie Kari Lehtonen, capped off the Blues' best second period of the playoffs and made it 5-1.
"It's always nice when your teammates get goals," said right wing Vladimir Tarasenko, who had a goal and two assists. "You need to be happy for each other."
Steen won't take credit for the defensive job he does; he's most satisfied when the team as a whole can execute effectively, which is what the Blues were able to do to near-perfection against the high-flying Stars.
"I think we pressured them a lot better," Steen said. "As a team we didn't like the turnovers in the beginning of the game. We were a little sloppy with the puck. After we got that goal scored on us, I think we reverted back to our structure. It's been one of our big positives this season has been reverting back to what we know works. We started building momentum and got a quick one there to tie it up at one. Otherwise, we would have just kept building on our plan."