Lou Lamoriello had finally seen enough.

Lane Lambert survived a seven-game losing streak in November.

But he could not survive a four-game skid that hit a low with a 4-3 overtime loss to the bottom-dwelling Blackhawks on Friday night in Chicago, sinking the Islanders’ record to 2-6-2 over their last 10 games.

Lamoriello, the Isles’ GM, announced on Saturday that Lambert had been dismissed after 1 ½ seasons behind the bench.

Patrick Roy was named the team’s interim coach, with the hope that he can jolt them into a fifth postseason appearance in six years.

That needs to start immediately, with the Stars and Golden Knights coming into town this week as the Islanders finish out their pre-All-Star break schedule with games every other day.

The list of things that needs fixing runs the gamut.

The Islanders had problems finishing games at the start of the year, but lately, their issues have expanded.

They’ve played lethargic hockey, struggled in the defensive zone, struggled on special teams and struggled to score. 

Injuries — Casey Cizikas, Semyon Varlamov, Pierre Engvall and Ryan Pulock are all currently unavailable, while nearly the entire defense corps has been banged up at some point this season — have played a major role.

But efforts like a shambolic 5-0 loss to the Wild on Monday and an overtime loss in Chicago where the Isles didn’t start playing until down 3-1 in the third period sealed Lambert’s fate.

Though Lambert did not lose the support of the dressing room, he seemed more and more out of answers as losses piled up.

Asked on Friday night how he could give the team a jolt, he talked not about himself needing to do more but about the players needing to be better.

“There’s leadership in that room,” he said. “We’ve got guys that need to play better. The jolt needs to come from within as well.”

He wasn’t wrong — the Islanders’ stars have been struggling on their current skid. But it was not a good look from a head coach under siege from the fan base.

Had the Islanders performed better in overtimes— they lead the league in overtime losses with 11 — it likely would not have come to this.

But the team’s 5-11 record in shootouts and overtime — after going 6-9 last season — does not look like the result of random chance at this point.

Nor does the 19-15-11 record that has the Isles mired in sixth in the Metropolitan Division.

It is not clear that a new coach is the sole fix the Islanders need right now.

The roster itself might be a bigger problem — and it figures that if things don’t turn around, Lamoriello’s job status will be in question after the season.

Lamoriello could also look to the trade market for a shakeup.

But the Islanders’ cap situation is hamstrung by their injuries, with Pulock’s salary on long-term injured reserve.

Unless the team believes he will miss the rest of the season, any potential deal is complicated by Pulock’s eventual return.

In other words, this was the card Lamoriello had in his hand. He needs it to be an ace.