CHICAGO — Starting pitcher Will Warren and outfielder Spencer Jones played like they should be part of the New York Yankees’ long-term plans in a tight 2-0 win over the Chicago Cubs on Friday at Wrigley Field.Will they remain in pinstripes past Monday’s trade deadline? Answering that question right now would be like trying to guess the severity of the next Midwestern storm.Jones crushed a solo home run — his second long ball of the week — and turned an 0-2 count into a walk on a day he played out of position in left field.Meanwhile, Warren bounced back from a recent rough stretch to throw 6 2/3 scoreless innings, striking out seven while allowing four hits and no walks.The Yankees scored their other run on Amed Rosario’s fourth-inning homer, a 450-foot blast to left center.“I had fun today for the first time in a long time,” Warren said.It came amid buzz throughout the league ahead of Monday’s trade deadline.As of Friday afternoon, the Yankees were scouring “everywhere” in the trade market, zeroing in on right-handed catchers and offense in general, according to a league source who spoke on condition of anonymity to describe ongoing deliberations. They were also expected to be looking into the reliever market.The Yankees are in an interesting spot. Shortstop George Lombard Jr., 21, could be their only untouchable prospect. They have intriguing pitching prospects they could trade. But it’s unclear how willing they would be to trade from the big-league team — and it’s unclear who on the active roster would be most appealing, considering the number of position players having down years at the plate.