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Rick Bowmer/Associated Press

Following the departures of Aron Baynes, Al Horford and Kyrie Irving, a drop-off in production might have been expected for the Boston Celtics. However, Kemba Walker and Daniel Theis have meshed perfectly, and the Celtics' five-man lineups with Kembar Walker, Gordon Hayward, Jayson Tatum, Daniel Theis and one of Jaylen Brown or Marcus Smart have thrashed opponents to the tune of plus-14.5 and -13.3 points per 100 possessions.

But the Celtics do have their share of shortcomings, and the Philadelphia 76ers have been happy to exploit them. Winners of all three matchups this season, the 76ers have dominated on the boards by a margin of over 14 boards per game.

The Celtics need some big help behind Theis, and they have little to no wiggle room to swing a big deal. Of the movable pieces, only Enes Kanter has a contract of any significance ($4.8 million). Thus, Danny Ainge will need to skirt the fringes for a difference-maker.

Nemanja Bjelica has the size and versatility to play the 4 and 5 and is one of the best spacers in the NBA. He ranks in the 100th percentile in effective field-goal percentage when playing the 5, 98th in mid-range and 98th in threes. At 43.5 percent, he's the ninth-best three-point shooter in the NBA.

Due to his age (31) and their prior financial commitments, the Kings could send out Bjelica for an asset.