WASHINGTON, DC - JUNE 24: Manager Don Mattingly #8 of the Philadelphia Phillies checks the lineup before the start of a game against the Washington Nationals at Nationals Park on June 24, 2026 in Washington, DC. (Photo by Jamie Sabau/Getty Images)Getty ImagesThe Philadelphia Phillies have built much of their recent success on consistency. While division rivals have dealt with dramatic changes and organizational uncertainty, the Phillies have largely maintained stability under manager Rob Thomson and seemed poised to continue when they first hired former New York Yankees MVP Don Mattingly as a bench coach.After opening the season in an alarming slump, the team replaced Thomson with Mattingly and have seen a turnaround. Meanwhile, the National League East division rival New York Mets have underperformed virtually all year.More recently, that pushed the Mets to fire manager Carlos Mendoza and hope for a turnaround under new interim skipper Andy Green. And shortly afterward, Mattingly offered a blunt assessment of how he wants to respond to the move. ForbesPhillies Acquire 27-Year-Old Infielder Shortly After Blue Jays CutBy Peter ChawagaPhiladelphia Phillies' Don Mattingly Responds To New York Mets’ Sudden ExitFollowing the Mets' decision to dismiss Carlos Mendoza amid the club's disappointing season, Mattingly made it clear the Phillies had little interest in spending energy on their division rival's internal turmoil.MORE FOR YOU"We don't know what's been going on over there, and we've got enough stuff to deal with ourselves,” Mattingly said, according to The Philadelphia Inquirer’s Scott Lauber. “So, I kind of just get back to the coldhearted (viewpoint). If I'm hitting, I need to get a good pitch to hit and I need to hit it hard. If I'm playing (defense), I need to make baseball plays for the situation of the game."Rather than weighing in on the Mets' organizational decision, the longtime manager, coach and former star player emphasized the importance of controlling only what happens inside the Phillies' clubhouse.That mindset has been a hallmark of Philadelphia's approach during its recent run of postseason appearances, with veterans and coaches routinely stressing execution over distractions.ForbesDodgers Castoff Sends 3-Word Message On Cubs Debut After ExitBy Peter ChawagaNew York Mets' Disappointing Season Led To Major ChangeMendoza's dismissal came after a frustrating stretch that left New York well outside the playoff picture despite lofty preseason expectations.As ESPN reported, the decision reflected more than just the standings."Because the last week has been an embarrassment,” ESPN’s Jorge Castillo wrote on the timing of the move. “The Mets needed to rattle off a long string of wins. Eight straight, 10 of 12, that sort of thing. Instead, they've lost six consecutive games to fall to a season-worst 13 games under .500. Most damning, though, is they've looked lifeless."While Mendoza became the latest manager to pay the price for a disappointing season, Mattingly's comments underscored why the Phillies aren't interested in allowing another club's struggles to become their focus.With postseason aspirations of their own, Philadelphia's priority remains preparing for each game rather than reacting to developments elsewhere in the division. As Mattingly suggested, that "coldhearted" mentality means concentrating on making pitches, taking quality at-bats and playing fundamentally sound baseball, regardless of what's happening across the National League East.