PF: Serge Ibaka
Obviously, we’re talking about prime Serge Ibaka here. The version of Ibaka that was running the power forward position for the Oklahoma City Thunder when they were making deep playoff runs.
Ibaka faded into the role of a solid bench piece late into his career, but in his prime, he was one of the best defenders in the NBA and also a quietly-solid three-point shooter.
A three-time All-Defensive guy and three-time NBA block champion, Ibaka’s defense would be exactly what the Mavericks should want to put next to Doncic.
His shot blocking on the inside and sneaky-good perimeter skills would be elite on the defensive end, and that’s without considering his offensive fit.
At his peak, Ibaka was taking 4.0 three-pointers per game and draining 39.1% of them. He’s a career 35.9% three-point shooter on 1.9 attempts per game, but we’re taking the peak version of the big man.
He would get some of the best three-point looks of his career while playing next to Doncic, also giving the point guard a great lob threat to look for in the pick-n-roll.
Plus, when you consider how great the Dallas Mavericks frontcourt would be with Ibaka and this next player, it’s an easy decision to make.
Honorable mentions (from each other tier): Kevin Garnett (HOF), Jaren Jackson Jr. (AS)