PHILADELPHIA — Not long after he contributed to a breezy Phillies win Tuesday night, Gabriel Rincones Jr. leaned forward at his locker. He watched video on his phone — not of the infield single that prolonged the second inning so the Phillies could score, or the seventh-inning walk that led to a run. He watched clips of Paul Skenes, the pitcher starting Wednesday for the Pittsburgh Pirates.The rookie outfielder could prepare because he knew he would be in the lineup again. This is the commitment the Phillies have made to him as June becomes July.“I’m super grateful for that,” Rincones said.It’s summertime, which means the Phillies are winning games and must have an outfield puzzle to solve. It is a tradition unlike any other, although this one has twists. Brandon Marsh likely will be an All-Star, a story of gradual improvement and the power of confidence. He’s a model for the two rookies, Rincones and Justin Crawford, who share the outfield with him on most nights.It is not a productive outfield; the Phillies have tinkered with the mix all season. Their outfielders have a .688 OPS. That ranks 23rd in MLB. The bar is low, making Tuesday’s 8-0 win over the Pirates a good night. Crawford had a two-run double and two singles. Rincones was on base. Marsh, on a rare quiet night, beat out a possible double-play ball to allow a run to score. The Phillies (48-38) moved within 2 1/2 games of the Atlanta Braves for first place in the National League East.No one is pretending this is the outfield mix the Phillies will carry into potential October games. But one of the rookies, probably Crawford, will have to do things. Derek Hill, a platoon fourth outfielder, might factor into it.Still, president of baseball operations Dave Dombrowski is almost certain to make an external addition to the outfield, even if marginal. Harrison Bader qualified as that last July. He proved to be a more significant acquisition than anyone expected. This trade season, the Phillies could shop in a similar tier — something above Hill but below Bader. As July begins, it is still impossible to know because the market remains undefined.The need is rather simple: The Phillies could use an outfielder who reaches base, no matter if he’s a right- or left-handed hitter. They have a .295 on-base percentage from their outfielders. That would be the lowest for a collection of Phillies outfielders since at least 1910.Dombrowski could prioritize that or lean into the team’s run prevention by acquiring a glove-first outfielder to fortify the defense. The Phillies were content to keep playing Adolis García, despite a lack of offensive production, because of his elite right-field defense. García is out for the season after surgery to repair a lat muscle.Justin Crawford hit .307 with a .693 OPS in June. He ended the month with a three-hit night. (Eric Hartline / Imagn Images)The Phillies have had modest offensive expectations for Crawford, who is halfway through his first season in the majors with a .655 OPS. It’s been a struggle. He has not been able to flash the game-changing speed the Phillies expected. His swing, which generates a high rate of groundballs, has required tweaks.