Jack Capuano is done playing nice guy.

The Islanders coach pulled no punches Monday morning, naming names as he ripped into his team’s work ethic and compete level before a game against the Lightning at Barclays Center.

Capuano singled out young forwards Ryan Strome and Brock Nelson, adding the veteran winger Josh Bailey, as three guys who need to be better and need to work harder.

“There’s no surprise: We need Stromey to be better, we need Brock to be better, we need Bailey to be better,” Capuano said. “We need guys to be better if we’re going to have any chance at all. They see it: It’s black-and-white — the video doesn’t lie. And it doesn’t come down to X’s and O’s, it doesn’t come down to systems. It comes down to how hard you want to compete.”

The lack of offensive production from those players is worrisome, but not as much as the coach calling out how hard they’re working.

“You have to compete at a high level, and it’s about accountability,” Capuano said. “It starts from the coaches, but — I’ve said this — if you want to win games, it’s about team and about accountability amongst the guys in the room. And you’re only letting your teammate down if you’re not going to compete at a high level.

“The guys I mentioned earlier need to pick their s—t up and start playing.”

Bailey, for one, was not surprised to have his coach’s comments relayed to him. With one goal, five assists and a minus-7 rating over the previous 18 games, the 26-year-old who was taken by the Isles in the first round of the 2008 draft was aware of his situation.

“I don’t need him to say it for me to know it,” Bailey said. “I think I know what needs to be done. I think I’ve been here a long time. I’m confident I’ve played some of my best hockey in the playoffs and down the stretches. It’s not like that’s the reason. I think I want to be better in any way, shape or form.”

Bailey did rebuke the idea that he needs to work harder, saying, “I don’t know about that.” He added that he tries to focus on the little things away from the puck when the points aren’t coming.

“I think I go out every game and try to skate and work and backcheck hard,” he said. “Those are easy things to go out and do. You don’t really have to think about those. You just go out and work. When thing maybe aren’t going great, you rely on those things to maybe get you out of whatever situation you may be in.”

Capuano also applied a guilt trip, saying the veterans in the locker room are being let down. The coach mentioned captain John Tavares, in his seventh season at age 25, as well as 29-year-old Cal Clutterbuck as players who deserve an opportunity to make a postseason run.

“Guys are getting older, they want a chance,” Capuano said. “So the young guys, as we’ve explained to them — you’re 20, 21, 22 [years old] — you don’t know when you’re going to get to this point again. You know what I mean? Like, you want to try to get in the dance to give yourself a chance.”

Strome, 22, is a natural center, yet playing on Tavares’ right wing, he often losses physical puck battles along the walls and is easily found out of position in his own end. After a stint back at AHL Bridgeport for most of November, Strome has eight goals and 26 points — along with a minus-11 rating — in 66 games this season. He had just one goal and three points in the previous 22 games.

Nelson, 24, started the season red-hot, but now has just five goals in his past 28 games.

“We’ve struggled with a few guys, for sure, about their compete level and their work ethic — and it has to be better,” Capuano said, his team still tenuously holding the first wild-card position. “There’s not doubt that those guys just have to figure it out at some point, or they’re just going to be a ‘sometimes’ player and work themselves in their hockey career [to the point of] who knows where it’s going to go.”

Rookie defenseman Ryan Pulock was set to the return to the lineup after four straight games as a healthy scratch. He replaced Brian Strait.

Backup goalie J-F Berube has a lower-body injury, which will keep him off the ice for “a few days,” according to Capuano. The team recalled Christopher Gibson from AHL Bridgeport on an emergency basis to back up Thomas Greiss.

Young defenseman Adam Pelech was sent to the AHL for a conditioning assignment, having not played since Jan. 14 as he recovers from an upper-body injury. The Sound Tigers play Friday, Saturday and Sunday, so he could be available for the first round of the NHL playoffs.