NEW YORK — The seventh inning of Game 1 of Sunday’s doubleheader against the Los Angeles Dodgers served as a perfect demonstration of why the New York Yankees must bolster their lineup before the trade deadline.With the Yankees trailing 3-1, Ben Rice led off the inning with a double. Their Nos. 3, 4 and 5 hitters awaited to capitalize on the scoring opportunity.Instead, Rice was stranded on second base: Jasson Domínguez weakly popped out on a pitch he chased; Cody Bellinger missed a splitter that Los Angeles Dodgers starter Yoshinobu Yamamoto hung in the middle of the plate; and Max Schuemann lined out on a fastball down the middle.The Dodgers blew the game open in the next inning, scoring five runs en route to an 8-2 win.Ken’s Week in Baseball: What will the Mets do with Francisco Lindor?Ken RosenthalYankees fans may dream about the middling San Diego Padres parting with All-Star closer Mason Miller, but if New York were to splurge in the trade market, it should be on the position-player side. And with this offense, it’s not even a matter of splurging. The Yankees simply need better options.It’s no secret that since the start of June, coinciding with Aaron Judge’s absence (fractured rib), the club’s offense has been horrid. The Yankees entered Sunday’s doubleheader tied for the sixth-worst offense since June 1.“We know we got the guys to get this going,” third baseman Ryan McMahon said after the first game.But it’s unclear whether the Yankees have the players “to get this going,” at least until Judge’s return, which is still many weeks away — and when Giancarlo Stanton (calf injuries) will return is still unknown. The players they have available now may not be good enough.In Sunday’s first game, the Yankees had five players with an OPS that began with a “6,” including their Nos. 3 and 6 hitters. They followed that in Game 2 by starting … five players with an OPS that started with a “6.” It’s hard to win games consistently with a lineup featuring that many dead spots.What’s concerning is that, from a team perspective, nothing under the hood suggests the poor results are flukey. The Yankees are walking considerably less since Judge’s injury, hitting the ball hard less often and chasing out of the zone more. That combination is going to lead to many brutal showings.The anemic lineup showed up again in the second game. The Yankees loaded the bases with zero outs in the fifth inning and failed to score after Domínguez struck out, Jazz Chisholm Jr. weakly popped out and Anthony Volpe struck out. They needed a Chisholm home run in the eighth inning off Evan Phillips, a low-leverage Dodgers reliever, to bail them out of getting swept in the series.Chisholm is self-aware enough to know he’s been one of the Yankees’ biggest problems this year.“I’ve sucked all season,” he said after the Yankees’ 2-1 win in Game 2. “The numbers speak for themselves.”The Yankees, who are 1 1/2 games back of the Tampa Bay Rays in the American League East, need upgrades.It’s not enough to only import a right-handed-hitting catcher, which the Yankees are not exactly staying mum about. They need more than that.To make bigger changes than just marginal upgrades, the Yankees may have to consider trading players such as Domínguez, Volpe, Spencer Jones and some of their pitching depth, like Will Warren and Elmer Rodríguez. And if moving any of these players is what it takes to swing big, so be it.There are two weeks until the Aug. 3 trade deadline, and it’s still unclear which players who may get dealt would be considered game-changing. Will the Athletics consider moving catcher Shea Langeliers, with multiple years of club control remaining, ahead of their move to Las Vegas? How about the Colorado Rockies with their All-Star catcher, Hunter Goodman? The Washington Nationals have been one of MLB’s surprise teams, but CJ Abrams would make sense for the Yankees, especially if he plays second base next year.Among the next tier of hitters who could be dealt are Luis Arraez, Mickey Moniak, JJ Bleday and Spencer Steer — each of whom would give New York better depth.The Yankees could get a boost from an internal option, too. Top prospect George Lombard Jr.’s major-league debut is on the horizon. There’s belief in the organization that the 21-year-old could help the bottom of the lineup.But relying on once-hyped prospects is why the Yankees are in this spot. Domínguez has been nothing short of a massive disappointment. Volpe, whose time may be running out with Lombard’s debut nearing, is clearly viewed by the club as a bench player. And Austin Wells has been horrific offensively.That’s why the Yankees cannot just rely on Lombard to be a savior. They need to import established bats, in addition to giving him a chance.Regardless of the Yankees’ strategic direction as the trade deadline approaches, failing to aggressively bolster their lineup would be a significant oversight.