"We weren't executing the way we needed to coming out of the zone," Callahan said. "Our turnovers were there and they seemed to outwork us at times in that first 40 [minutes], which we can't have that happen."
So the Lightning must go back to Pittsburgh now, as they had to go back to Madison Square Garden for a Game 7 last season. Few expected them to defeat Henrik Lundqvist and the Rangers with a trip to the Cup Final on the line, but they played a near-perfect road game and advanced with a 2-0 victory.
They must find a way to do it again Thursday.
"I know we can," Callahan said. "I've got confidence in this group. We believe in here that we can do that. We've had success on the road in the playoffs. We've had success in their building already, so it's going to be a good one."
The Lightning have some reasons to be confident. As Callahan noted, they've played well at Consol Energy Center, winning two of three games in this series and five of seven in their two playoff matchups against the Penguins.
They also have the memories of what they did against the Rangers last year after many counted them out.
"Last year when we went to Game 7, we won Game 7, and we'll be thinking about that," coach Jon Cooper said. "Ultimately, we can't spot a team like this a three-goal lead. … Now, you've got to go back to a tough environment, just like the Garden was last year, and you've got to have your A game. That's the lesson we've got ahead of us now.
"We had our chance to knock them out [Tuesday]. Give Pittsburgh a ton of credit for the way they played and how they handled things. They volleyed the ball into our court, and now it's time for us to smash it back."