The Nets head into tonight’s game in Brooklyn against the Spurs — a matchup that kicks off a stretch of seven straight against teams with winning records — with losses in five of their last eight.

That indifferent stretch, including Friday night’s lackluster loss in Washington, has Nets interim coach P.J. Carlesimo pondering lineup changes in order to shake things up.

“We’ve just got to look at it,” Carleismo said after that 89-74 loss to the Wizards. “Maybe we have to substitute differently. Maybe we can’t put certain guys in the game together. Maybe we can’t continue to give people chances if they’re hurting us defensively or not being able to put the ball in the basket.

“We’ve just got to look at it, because it seems like it’s been a recurring problem. We can’t dig that big a hole. I don’t know. We just have to examine it a little bit better, and just come out Sunday and say, ‘I hope we play good, I hope these guys play good.’

“It’s not working right now.”

A look at the numbers underlines Carlesimo’s point, as the Nets’ bench, for the most part, hasn’t been effective lately. Over the past eight games, which have made up the lowest point of Carlesimo’s tenure since taking over for Avery Johnson in late December, the Nets’ starting lineup of Deron Williams, Joe Johnson, Gerald Wallace, Reggie Evans and Brook Lopez has combined to shoot 45.5 percent from the field, and 38.8 percent from 3-point range.