Penguins defenseman Ian Cole said several changes would have to be made for Pittsburgh to awaken in Game 7.
"I think we could've been better in just about every game we've played this series," Cole said. "I don't think it's just one thing. So we'll have to reassess what we want to do and go from there."
Pittsburgh has lost three straight games three times since Sullivan replaced Mike Johnston on Dec. 12, 2015. They never have lost three in a row in the Stanley Cup Playoffs with Sullivan as coach.
Sullivan's success has gotten the Penguins to buy in to his teaching moments. That was the case again Tuesday.
"If we get pucks behind them, hopefully that can create odd-man rushes for us and back them off," defenseman Brian Dumoulin said. "We're learning. We've played this team six games now so there's a lot to learn. But also we know what each other is made up of right now. It's going to come down to who wants it more in this Game 7."
The Penguins would have liked to avoid playing a Game 7 for the first time since the 2016 Eastern Conference Final, when they defeated the Tampa Bay Lightning. But with that game looming, goalie Marc-Andre Fleury said they might as well make the most of it.
"I think it will be exciting. It will be intense," Fleury said. "It's a big game."