The ice was absolutely horrible, and Pittsburgh got a few good bounces.
The officiating has not been very good or consistent, with the notable dives by Cindy Crosby going unpunished. A phantom call on Straka vs. Crosby put Pittsburgh on the last powerplay that they won the game on. Bettman wants Crosby to advance, and the referees have a different rule book in place for their star.
All that said, the Rangers need to simply play better if they want to advance. The lineup should have a little more pop tomorrow night, with Prucha getting minutes on the second line and Shanahan conserving energy taking 4th line minutes. Sjostrom and Betts with Shanahan would be a good defensive matchup against Crosby, and Renney will have the opportunity to put them out there with the last change at home. Prucha with Avery and Gomez also will have a high motor and lots of scoring ability for a second line.
On the bright side, Lundqvist has been brilliant. He'll have to continue to be for the Rangers to have a shot.
If the Rangers can't get it going with this lineup, the series will be very short.