The scoring issue for Vegas is a carryover from its seven-game win against the Vancouver Canucks in the first round.
The Golden Knights led that series 3-1, but despite having 127 shots on goal in the final three games, they scored twice against Canucks goalie Thatcher Demko and twice into an empty net.
After scoring 45 goals in its first 12 postseason games, Vegas has 10 in its past seven, including four from forwards that were not into an empty net.
In 19 postseason games, Vegas has a shooting percentage of 8.0 percent, below the NHL average of 8.86 percent. But in the seven games since Game 4 against Vancouver, it is 3.9 percent.
DeBoer said the Golden Knights need to do a better job getting traffic in front of Khudobin.
"When a goalie is hot, if he can't see it, he can't stop it. So we have to get bodies there," DeBoer said. "Other than that, we created enough looks with the puck in the right people's hands. Most times, we're getting at least three goals in a game like that and maybe four or five. We've just got to stay with it."
Marchesssault said the mental approach of the Golden Knights is also key.
"Well, my emotional level cannot rise," Marchessault said. "It needs to cool down a little bit. I think, honestly, we've been pretty good, everybody. We're grinding. We're playing the right way. We're not giving a lot of scoring chances. We just can't bear down. At some point, we've got to stick with it. It's adversity you're going to face in the playoffs. We're going to face hot goalies, we're going to face offensive power, like Vancouver had a good power play, stuff like that. We're going to face all of that.
"This year, we have expectations. It's a tough thing in hockey sometimes. I know we have a lot of gamers in that locker room. Not that I'm not worried, we just have to take care of business tomorrow."