The Boston Celtics are just nine days removed from a stunning first-round playoff exit, and the fallout is already beginning to take shape. After blowing a 3-1 series lead against the Philadelphia 76ers, the Celtics' season ended far earlier than anyone in Boston expected. Now, with an offseason of major change looming, one insider is predicting significant roster turnover—and it might not involve the names you'd expect.

While trade rumors have swirled around stars Jaylen Brown and Jayson Tatum, longtime Celtics insider John Karalis believes both "Jays" will remain in Boston next season. Instead, Karalis sees the team parting ways with two-time All-Star center Nikola Vucevic in free agency and trading starting forward Sam Hauser. In a detailed breakdown, Karalis outlined a series of moves: declining Dalano Banton's option, letting Vucevic walk, picking up options on young players like Baylor Scheierman, Jordan Walsh, and Neemias Queta, and using Hauser as trade bait. He also anticipates the Celtics using their full mid-level exception and up to $17 million in trade exceptions to reshape the roster.

Vucevic, acquired at the trade deadline in February, was supposed to be the missing piece for a deep playoff run. But the 35-year-old veteran struggled to find his rhythm after the move, missing time with injury and never fully clicking with his new teammates. In the postseason, he averaged just 6.2 points and 4.3 rebounds over 19 minutes per game before being benched entirely in the decisive Game 7 loss to Philadelphia.

Hauser, meanwhile, had a career year during the regular season, starting 49 games and posting averages of 9.2 points, 3.8 rebounds, and 1.5 assists while shooting nearly 40% from three-point range. He started six of Boston's seven playoff games, averaging 7.7 points and 4.3 rebounds in 23.4 minutes per contest. Still, the 28-year-old forward appears to be the odd man out as the Celtics look to retool around their core.

For a team that came into the season with championship aspirations, this offseason represents a critical crossroads. The moves Karalis predicts would signal a shift toward younger, more flexible pieces—and a clear message that the front office isn't afraid to make tough decisions. Whether that leads to a deeper playoff run next season remains to be seen, but one thing is certain: the Celtics' summer is about to get very interesting.