The Penguins have shown their resilience this season, finishing third in the Metropolitan Division after starting 7-8-4, and Crosby said he doesn't believe they need to change their approach.
"The urgency becomes higher and that should bring out the best in us," Crosby said. "We've been in these situations this year and it's brought out the best in our team, so I think if we come out with the right mentality and execute a little better, we'll get the result we want."
Crosby, who had 100 points (35 goals, 65 assists) in 79 regular-season games, does not have a point in the series. He has three shots on goal and is minus-1.
"These games are tight and close-checking, and when it's that kind of game, you have to execute. So I think that when it's 1-1 or 2-2, as it's been these last couple of games, we have got to get that next one," Crosby said. "We haven't been able to do that, and that's the difference to me. Other than that, I'd say the chances are pretty even."
Sullivan said he believes it's just a matter of time before Crosby finds his game.
"I haven't been disappointed," Sullivan said. "[Crosby] is too good and too important to our team. I would never be disappointed in him. I know how hard he competes, how much he cares."