It wasn't from tightening up after falling behind. It wasn't the team's youth that put them at a disadvantage.
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"No, we got lazy," Gordon said.
The Islanders controlled the first period by outshooting and outmuscling a physical Kings team, although the effort failed to produce a goal. During the next two periods, however, the Islanders allowed the Kings to dictate play.
"We have to react better," Islanders captain Doug Weight said. "We've been starting off in a good manner but it seems when we get behind, or we get up, we change a little bit. We have to have the attitude of playing 60 minutes regardless of the scoreboard, regardless of the atmosphere. We haven't been able to do that."
The Kings opened the scoring with less than two minutes left in the second period on a well-placed shot by Anze Kopitar, the first power-play goal allowed by the Islanders this season.
"That was obviously a costly goal and it turned out to be virtually a game-winner,'' Weight said.
"We came back for one goal but that changed the flow of the game. That's what special teams do."
Biron said that the Islanders got tentative after that goal.
"We played safe," Biron said. "We played an OK game, but OK is not going to work in this league. We've got to play harder and go for it more."
With the Isles lacking aggressiveness, Drew Doughty gave the Kings a 2-0 lead at 5:31 of the third period. Jarret Stoll circled down along the goal line, hitting Doughty as he raced in toward the slot, and the defenseman beat Biron on a 33-foot slap shot.
The Islanders made a push late in the third period, with former Kings prospect Matt Moulson knocking in a rebound of Kyle Okposo's shot from the high slot at 18:05. But unlike their previous defeats, the Islander didn't reach overtime and came away without a point.
"We have to understand what gives us success and there are no shortcuts," Gordon said. "We took a lot tonight, especially in the second period."
Weight said he isn't concerned that the team's lack of success will snowball, but he does want to see a more committed and consistent effort.
"We don't have to keep up the morale," Weight said. "We have to kick each other in the butt and play 60 minutes."