The trade that sent away Kendrick Perkins devastated the Boston Celtics. While he had been battling injuries, he was the perfect center for them. He was such an imposing figure on defense and on the boards, and completely represented what the team has been built on the last few years.
As both sides move on, the Celtics are incredibly frail at center. Shaquille O'Neal's retirement leaves Jermaine O'Neal as the lone 5-man in Boston. And that's a scary thought.
The still-active O'Neal will be 33 when the season begins. He has been injury-prone for many years, and that probably won't change with age. He did a solid job as a starter in the playoffs, considering his physical condition and his lack of time on the court in the regular season. But there is no way he can do it for anywhere near 82 games, plus the postseason.
The C's have the 25th pick in the draft. This is not really a position to obtain an impact center. They will probably want an experienced one to help out right away through trades and free agency.