The confetti has settled, the championship banners still gleam in TD Garden, and the echoes of last season’s triumphant roar linger in Boston. But for the Celtics, the glow of victory has faded into the shadow of a daunting new challenge. With Jayson Tatum sidelined by a devastating torn Achilles and key offseason departures reshaping the roster, the road ahead is anything but certain. The defending champions are no longer the hunted—they’re the underdogs, stepping into a season defined by grit, reinvention, and a piercing warning from a Celtics legend.
Jeff Twiss, the Celtics’ Vice President of Media and Alumni Relations and a 2025 Hall of Fame John W. Bunn Lifetime Achievement Award recipient, delivered a message that cuts to the core of what it means to wear the green and white. Speaking on the You Got Boston podcast, Twiss channeled the wisdom of his mentor, the iconic Red Auerbach, with a blunt challenge to the current squad: “You can’t fool Boston Celtics fans. They know when you’re putting out, they know when you’re giving a good effort or when you’re dogging it and you aren’t playing your best. As long as you gave it a good effort, they’ll appreciate that.”
For a franchise staring down adversity, Twiss’s words are both a rallying cry and a reality check. A Celtics lifer since 1981, Twiss was Auerbach’s right-hand man, a keeper of the team’s storied tradition. He’s seen the highs of Bill Russell’s dominance, Larry Bird’s brilliance, and Paul Pierce’s tenacity. Now, as Boston navigates uncharted waters without Tatum, Twiss is demanding the same relentless effort from today’s stars—Jaylen Brown, Derrick White, and newcomer Anfernee Simons.
With Tatum out for most, if not all, of the 2025-26 season, Jaylen Brown steps into the brightest spotlight of his career. The Finals MVP is no stranger to pressure, but this year’s challenge is monumental. Brown must anchor the offense, create shots in crunch time, and fill the defensive void left by Jrue Holiday’s departure. It’s a tall order, but those who know him best aren’t betting against him. “He’s Finals MVP,” former Celtic Malik Fitts said on NESN’s Hold My Banner podcast. “I don’t know how you can doubt that… I think he’s going to lead the team pretty well.”
Boston fans don’t demand perfection from Brown—they demand heart. Twiss’s message underscores what this city has always valued: authenticity and effort. Brown’s ability to embrace that ethos will define whether he can carry the Celtics through this storm.
Derrick White, fresh off signing a $129 million extension, is poised for a career-defining season. “I didn’t want to play nowhere else,” White told Sports Illustrated. “Like I wanted to be in Boston.” His loyalty is matched by his production—last season’s career-high 16.4 points per game, 44.2% shooting, and elite perimeter defense make him a cornerstone in a system facing upheaval. With Tatum sidelined and the roster in flux, White’s consistency could be the glue that holds Boston together. His quiet leadership and two-way tenacity embody the effort Twiss insists the fans will recognize.
Enter Anfernee Simons, the potential spark that could ignite Boston’s retooled offense. Acquired in a bold offseason move, the 25-year-old guard brings a scoring punch that could reshape the Celtics’ identity. “I bet you he’s their leading scorer,” an anonymous NBA GM told Heavy Sports. “That dude is a bucket.” Simons, who averaged around 20 points per game in the Western Conference, now faces a new challenge in the East—more touches, fewer defensive schemes designed to stop him, and a chance to explode. If he delivers, he could be the wildcard that keeps Boston competitive.
Brad Stevens, the architect behind Boston’s championship run, faced tough choices this offseason. Trading Jrue Holiday and losing Kristaps Porzingis gutted the roster’s depth, forcing a shift toward long-term sustainability at the cost of short-term pain. For head coach Joe Mazzulla, the task is clear but daunting: forge a new team identity while keeping the locker room united. Twiss’s words loom large here—Boston’s “very smart, savvy fans” will see through anything less than full commitment. Every possession, every play, must carry the weight of a city that lives and breathes its team.
The Celtics’ culture demands accountability, and Twiss’s warning leaves no room for excuses. Even Hall of Famer Chris Bosh, speaking at Mohegan Sun, acknowledged the steep climb ahead. While he named Tatum as a potential MVP candidate before the injury, he also noted how “very, very difficult” that path is. Without Tatum, the spotlight shifts to Brown, White, and Simons to prove they can uphold the Celtics’ legacy.
Last season’s championship is a memory, not a crutch. The 2025-26 campaign is a proving ground, a test of resilience for a franchise that thrives on defying the odds. Twiss’s message is a reminder that Boston fans will forgive losses, but never a lack of heart. As the season tips off, the Celtics must answer his call with sweat, sacrifice, and the kind of effort that echoes through TD Garden louder than any championship roar.