The 15

By Vinny Jace, Special to the15net dot com:

Last summer, the Celtics were in a dire cap situation, paying over $500 million for a roster without its fulcrum. Brad Stevens spent that offseason offloading Jrue Holiday and Kristaps Porzingis for meager returns. The point wasn’t to receive meaningful player compensation, but salary relief. The Celtics couldn’t even retain Luke Kornet—a player Stevens had called a top priority—despite holding his Bird Rights. The 2025-26 Celtics were in no position to improve and had to rely on in-house talent and bargain-bin additions.

Nearly a year later, the Celtics have significant breathing room between themselves and the first and second aprons. They are below the luxury tax and now possess tools unavailable last offseason: the full mid-level exception, the ability to aggregate salaries to match larger incoming contracts, unfrozen picks they can trade, and a reset repeater tax clock.

This summer, Boston stands at a crossroads: try once more to build around the current core or reshuffle the deck. The argument for minimal changes is that the team already has solid bench depth. They can chalk up their first-round exit to bad luck, hope Jayson Tatum returns stronger in 2026-27 and pray he doesn’t miss another Game 7.
But the reason Tatum missed that game was calf tightness caused by the heavy minutes he was forced to play. The Celtics had to rely on him as their do-it-all forward because players on the roster simply couldn’t replicate what he does. In the past, the Celtics could count on Tatum as an ironman capable of shouldering that burden nightly.

Post-Achilles tear, however, he is more vulnerable. Tatum has achieved a miracle by returning from such a devastating injury so quickly and looking every bit the franchise player. Yet the circumstances around how much the team can put on his plate have changed.
Watching games from the 2024 season, what strikes me most is how diverse the Celtics’ offense was in the playoffs. Opponents could not simply drop in coverage to stifle Boston’s athletic wings, who prefer to score near the rim, because of the game-breaking presence of Al Horford and, for a brief period, Kristaps Porzingis.

The Celtics won’t win another title until they find a big man who can once again make it easier for them to attack close to the basket. Joe Mazzulla has mastered using shooting variance to turn the Celtics into a regular-season machine, but the past two playoffs have shown—in a smaller sample size—that this approach can backfire horribly without offensive diversity.

Even with the available tools, the Celtics face limited high-impact options unless they shop one of Jaylen Brown or Derrick White. Brown is eligible for a two-year extension this October that would likely keep him in Boston for the rest of his prime and make him a Celtic for life if he signs. Brown has been an outstanding player and person for both the team and the Boston community. But this is a cold business. There is a real argument that the Celtics’ downward trend can only be properly addressed if the Jays era ends with his departure—either for a disgruntled superstar (if possible) or a collection of players who better fill out various roster needs.
The best realistic option at center may be bringing back Nikola Vučević, provided the price is right.

His minutes often looked awkward last season; he frequently appeared unsure what to do with his hands, likely due to the finger injury he suffered in March. Still, he serves a purpose, and Mazzulla has managed him effectively by neutralizing his weaknesses and leveraging his strengths. Re-signing Vooch as a backup veteran big on a modest salary would be a quiet win regardless of Boston’s bigger moves. Other options include using the $15 million mid-level exception on Mitchell Robinson to potentially screw over the Knicks. The catch is that this would hard-cap Boston at the first apron, and Robinson has a significant injury history. Boston could end up doing the Knicks a favor.

The free-agent pool for centers is otherwise uninspiring. Upgrading from Luka Garza by chasing Nick Richards is one modest possibility, but that’s about it. Jusuf Nurkić is unlikely to leave Utah, and Robert Williams III will probably command a larger salary than Stevens wants to pay an oft-injured big.
This all circles back to the broader question of whether it’s time to lay the Jays era to rest. Whether targeting Giannis Antetokounmpo or someone like Domantas Sabonis, the changes this team needs cannot happen without moving one of the three highest-paid players while they are still at peak value. The overarching factor is that the Celtics cannot win another title without a big man who can do what Horford once did.
This league has always been dominated to some degree by centers. The Thunder, Spurs, and Knicks all feature game-breaking bigs who can create for themselves and protect the rim. Even a solid, all-around player like Sabonis would feel like a godsend in Boston because the team hasn’t had a big who could meaningfully expand its offensive repertoire in years.

Teams in Boston’s position often double down on the past and pay the price, or they sever ties and risk digging the hole deeper. Denver remains tied to Nikola Jokić and Jamal Murray and hasn’t returned to the Finals since 2023. Milwaukee misidentified its problems by swapping Jrue Holiday for Damian Lillard and now faces the possible end of the Giannis era. Boston cannot afford to be stagnant or foolish. Brown has not minced words: he wants to remain a Celtic and retire here. Boston is his home. But can management realistically believe they will recapture glory by recommitting to this core when the roster has so many other pressing needs?

Vinny Jace is a special contributor to The15net.com. He does not live at the Museum of Science.