Yankees owner Hal Steinbrenner swore to keep manager Aaron Boone, basic supervisor Brian Cashman and the core of his group, shaking off a squashing loss to the Los Angeles Angels in which New York lost a four-run, ninth-inning lead.Steinbrenner talked with press reporters Thursday, the morning after the 11-8 defeat in which New York scored seven runs in the very first inning. The Yankees are 41-39, 4th in the American League East, 8 1/2 video games behind first-place Boston.Steinbrenner, 51, was clear that he does not act like his impulsive late dad, George, who ran the Yankees from 1973 to 2008 and altered supervisors 21 times.7 h”He certainly did that a lot. I think what individuals forget is that many times it didnt help, it didnt work. And oftentimes, rather frankly, he was slammed for it, right?” Steinbrenner said. “So Im simply a believer in seeing a whole body of work from an employee, irregardless of what department theyre in. And we do that year to year to year and every year.”Even someones in the middle of an agreement, at the end of the year, Im going to look at their efficiency and Im going to decide whether to continue with that person or not continue with that person, irregardless of whether or not theyre under agreement. And doing it knee-jerk response to calm this person or that person in the middle of a year when I really dont think theres an issue, thats certainly is something Im not going to do.”Also on Thursday, the Yankees got outfielder Tim Locastro from the Arizona Diamondbacks in exchange for right-hander Keegan Curtis.Locastro, 28, a profession.234 player, is striking.178 with one house run and five RBIs this season. Curtis, 25, was pitching in Double-A for the Yankees with a 3.94 ERA in 12 appearances.The Yankees had formerly acquired Locastro from the Los Angeles Dodgers after the 2018 season then traded him to the Diamondbacks a month later.The Associated Press contributed to this report.