The Predators had four players in the defensive zone when Guentzel scored.
In addition, a clean entry and zone time led to forward Patric Hornqvist's near power-play goal in the third period. It was taken off the board by a successful coach's challenge for offside by the Predators. If center Matt Cullen kept his skate on the ice on the entry, it would have counted.
However, there is a reason the Penguins went 0-for-7.
"It's just a matter of execution," Sullivan said. "We've just got to get more pucks to the net when we have opportunities to shoot the puck."
They had the two shots and seven total shot attempts. Credit for some of that has to go to the Predators' penalty-killers, who are doing a good job once the Penguins set up in the zone. Nashville's 28 clears in Game 2, an average of more than two per minute on the penalty kill, were effective.
"We always talk about that so that always kills the clock down," Predators center Colton Sissons said. "Besides that, I think we're just in really good positions and not giving them really Grade A looks and Grade A chances, keeping some shots to the outside and just keeping shot totals down in general."
The Penguins, though, helped the Predators in that cause Wednesday. They passed up opportunities to shoot multiple times, starting with the first rush on their first power play, when forward Phil Kessel had a lane from the right circle but tried to feather a pass to center Sidney Crosby cutting in from the left side.
"We need to learn," Malkin said. "We need to watch TV [Thursday] or after and we need to talk together. It's not fun because it's very important. Each power play, if we [don't] score we need to shoot the puck to [the] net and play hard. I think we play a little bit casual. We try to give each other [a] good pass, but it's not working."
It didn't hurt the Penguins in Game 2. That's the good news. But a better overall power play in Game 3, combining everything necessary, could be a factor in solving the Predators in their own building, where they are 7-1 with 13 goals-against in the 2017 Stanley Cup Playoffs.
"I know our power play will be better," Sullivan said. "It wasn't at its best [Wednesday] night, but these guys have been so good for us throughout this whole regular season and the playoffs. The power play has won a lot of games for us here. They're going to be important for us."