MIAMI — There was a queue Tuesday night for the batting cage next to the manager’s office inside the visitors’ clubhouse at loanDepot Park. This is life when a team has scored one run or fewer in six of its last 11 games. First, Trea Turner took some hacks against Philadelphia Phillies assistant hitting coach Edwar Gonzalez. Then, it was Brandon Marsh’s turn.Don Mattingly, the interim manager who was appointed in late April, the last time the Phillies endured a team-wide slump this bad, talked over the thwacks adjacent to his office. He fielded a lineup without Kyle Schwarber, who has another gastrointestinal issue. He must hit Alec Bohm in the cleanup spot because there’s no other right-handed choice. The bottom four hitters in Tuesday’s lineup — Edmundo Sosa, Justin Crawford, Bryan De La Cruz and Garrett Stubbs — have either been below-average performers or just got here.Bryce Harper has struggled all month. But no one has stumbled like Marsh, who is batting .141/.221/.218 in July. He was batting .324 on June 25. He was down to .280 on July 28.“We just keep working and make sure he stays in a good headspace and keeps moving forward in this situation,” Mattingly said after a 1-0 loss to the Miami Marlins. “You get caught up in it when you’re in it as a hitter. But we still got to be able to talk about the light, right? There’s going to be a light at the end of this, and it’s going to get going again. We got to make sure we stay in that space because he’s not getting anything that’s happened at this point back. Good or bad. So it is really what happens next. Nobody is going to remember this little stretch of his if he gets hot and down the stretch he’s helping us win games.”Where will Tarik Skubal end up?Cody Stavenhagen and moreMarsh was strong enough to earn his first All-Star selection; he was the one consistent member of the supporting cast to Schwarber and Harper through the first three months of the season.“Just keep grinding, man,” Marsh said. “Just gotta keep going.”The Phillies (57-51) have lost eight of 11 since the All-Star break. They have scored 43 runs in those 11 games, but only 16 runs in the eight losses. Their .707 OPS as a team since the break ranks 16th in the majors, which is somewhat unfathomable but probably says more about the greater lack of hitting across the sport.That makes fixing this whole thing even more challenging. The reality is the Phillies cannot fix it with a trade or three before Monday’s deadline. But they occupy familiar territory. This will be Dave Dombrowski’s sixth deadline as Phillies president of baseball operations and, presumably, his fourth time acquiring an outfielder.The Phillies have faced some good pitching in the last 11 games — Nolan McLean, Justin Wrobleski, Cam Schlittler, Ryan Weathers and Sandy Alcantara, who silenced them for seven innings Tuesday night. “Sometimes baseball kind of just rolls that way,” Harper said. “And obviously, we don’t want to make excuses or not come out of the break hot like that.” The issue is that the Phillies will face good pitching in the postseason, provided they make it to October again.Can this lineup beat it?“I mean, I think we need some help,” Harper said. “You know? But I think we’ve proved pretty much all year we’ve done a pretty good job. But anytime you can get some help in here and reinforcements, I think it helps.”The Phillies still rank dead last in the majors in on-base percentage. The outfield is the easiest spot to upgrade, although the quality of available bats is mediocre. Maybe it’s best to look at it this way: The Phillies don’t need to acquire the best player. They need to find the biggest upgrade.Only three teams have received less offensive production from their right fielders than the Phillies, who have amassed a .635 OPS from them. They are onto a new everyday player there, De La Cruz, who started Tuesday against a righty for the first time. He was the only one in the lineup with two hits.He has supplanted rookie Gabriel Rincones Jr., who probably won’t be in the majors after the trade deadline. Mattingly said as much before Tuesday’s game.“Rico’s been given a decent runway against right-handed pitching,” Mattingly said. “Hasn’t been as good as we’d like. De La Cruz, he’s getting his hits. And I know he’s going to be solid in the outfield and all that. So I don’t feel like it’s going to be worse than what we’re seeing.”The whole situation is fluid. There’s an argument to be made for the Phillies acquiring two outfielders, but maybe that is too extreme. They could float Crawford, who has mostly survived as a rookie center fielder, as a trade chip for another controllable player. That is not likely, but it’s not impossible either.For now, De La Cruz is the only player who will receive everyday playing time in the outfield. The well-traveled, 29-year-old veteran was deemed not worthy of a spot in the majors until last week. Marsh and Crawford are being platooned.Brandon Marsh is batting .141/.221/.218 in July. (Mitchell Leff / Getty Images)The Phillies need Marsh to recapture some momentum. He was at the plate in the sixth inning Tuesday with runners on first and second. Alcantara froze him with a fastball at the top of the zone.Marsh’s game is reliant on contact because he has one of the highest batting averages on balls in play in big-league history. He has struck out 25 times in 86 plate appearances this month.Marsh is seeing more pitches out of the zone in July. He’s chased more of them, too.“Maybe a little bit of both or all of it,” Marsh said. “Those pitchers are good, man. So you just got to keep going. Maybe swinging a little too much out of the zone. Could tone it back a little, but I’ve also hit a lot of those pitches in my career. So just going through a little grind right now. It’ll be all right.”It’s tougher to see the bigger picture with every Phillies loss this month. At the very least, Marsh sounds like someone who can imagine the light that Mattingly described.