Through the first two-thirds of the season, the Boston Celtics have blown past every expectation, sitting comfortably in second place in the Eastern Conference with a 36-19 record.
The All-Star break is now behind them, and the Celtics are stepping into the most unforgiving stretch of the year. The playoffs are less than two months away, every game carries massive weight, and the margin for error is razor-thin. While Jaylen Brown and Derrick White will continue to lead the charge, Boston’s playoff positioning — and its roster plans for next season — will hinge on the role players who step up right now.
For three players in particular, the next few weeks are do-or-die. Their performances will decide whether they remain part of the Celtics’ long-term vision or find themselves packing their bags this summer.
1. Nikola Vucevic, C No one on this list has more on the line than Nikola Vucevic.
Acquired to help replace Kristaps Porzingis, the veteran center is now being asked to do something he hasn’t done since his rookie year: come off the bench and play a complementary role on a championship contender. So far, he’s handled the demotion better than most expected — averaging 12.5 points, 8.5 rebounds, and 1.8 assists while shooting a respectable 42.9% from three on 3.5 attempts per game.
But “solid” won’t be enough. With Vucevic headed into unrestricted free agency and the Celtics holding cap flexibility, the front office will be watching every possession closely. If he can stretch the floor, punish mismatches, and prove he can thrive as a third or fourth option alongside Tatum and Brown, Boston may prioritize bringing him back. Anything less, and his time in green will likely end this offseason.
2. Jordan Walsh, G/F Jordan Walsh has finally earned real minutes this season — more than in his first two years combined — yet inconsistency has been his constant shadow.
Whether it’s inexperience or the logjam on the wing, Walsh has yet to carve out a reliable role. With Baylor Scheierman thriving in the starting lineup and Jayson Tatum’s eventual return adding even more competition, the window is closing fast.
Walsh’s defense is already elite for his age — he’s one of the team’s best perimeter stoppers and a menace on the glass. But his offense has been a black hole too often. At 37.9% from three on low volume, he remains a streaky shooter who disappears for long stretches. If he can’t become a consistent scoring threat — whether attacking closeouts, finishing at the rim, or knocking down open threes — the Celtics will have no choice but to move on. This stretch is Walsh’s last real chance to prove he belongs on a contending roster.
3. Ron Harper Jr., G Ron Harper Jr. isn’t expected to play meaningful playoff minutes unless injuries hit hard, but the next few weeks are still critical for his future in Boston.
In his last four games, the young guard has flashed real promise, averaging 5.0 points, 4.3 rebounds, and 1.3 assists while showing impressive defensive versatility. His standout performance against the short-handed Rockets — 11 points, nine rebounds, and lockdown defense — earned him extra opportunities and proved he can deliver when called upon.
With the Celtics likely resting star players down the stretch to preserve them for the postseason, Harper and the rest of the depth chart will get extended run. If he can continue to show growth, make smart plays on both ends, and handle increased responsibility without folding, the front office will have every reason to bring him back on a low-cost deal.
Fail to make a lasting impression, however, and Harper’s brief window in Boston will close for good.
The Celtics’ playoff push is about more than seeding — it’s a live tryout for the roster of the future. For Vucevic, Walsh, and Harper, the clock is ticking. Their time is up unless they prove, right now, that they deserve to stay.