In a Game 7 that had everything on the line, the Boston Celtics' biggest trade deadline acquisition was nowhere to be found—and not in the way anyone expected.

Nikola Vucevic, the veteran center who once anchored the Orlando Magic and later the Chicago Bulls, was brought to Boston to provide much-needed frontcourt depth. But in Saturday's decisive matchup against the Philadelphia 76ers, he didn't see a single minute of action.

The Celtics' big man rotation was in shambles. Neemias Queta picked up early foul trouble, and Luka Garza followed suit. Yet when the Celtics needed size to counter Joel Embiid's dominance, they turned to a lineup of small forwards playing out of position instead of the 6'10" center they had acquired specifically for moments like this.

Vucevic had averaged 19 minutes per game through the first six games of the series, making his complete absence in Game 7 all the more puzzling. While there's no guarantee he would have changed the outcome, the decision to keep him on the bench raises serious questions about the team's strategy and trust in their own personnel.

The trade that sent Anfernee Simons to Chicago in exchange for Vucevic seemed logical at the time. Boston needed interior depth, and Vucevic was a proven scorer and rebounder. But depth only matters if you're willing to use it.

Unless Vucevic was dealing with an undisclosed injury or illness, the Celtics essentially admitted they couldn't trust him in the biggest moments of their season. That's a damning assessment for a player heading into free agency this offseason—and one that likely seals his fate in Boston.

It's a bizarre end to what was supposed to be a key acquisition. The Celtics needed size, they traded for it, and then they refused to use it. In a league where every possession matters, especially in Game 7, that kind of disappearing act is hard to explain—and even harder to justify.