4. Richaun Holmes, C, Sacramento Kings
If the San Antonio Spurs want an upgrade at the center position, one potential candidate could be Sacramento's Richaun Holmes. The 6-10 Illinois native is coming off the two best seasons in his NBA career and averaged career-highs in points (14.2), rebounds (8.3), and blocks (1.6) last year.
Hustle and interior finishing are Richaun's biggest strengths, with a motor similar to the Lakers' Montrezl Harrell in that regard. With his size and strength, he's a handful in the paint on both ends of the floor.
While I would give a slight edge to Jakob Poeltl in protecting the rim, what Holmes brings on the other side of the court would make a huge difference for this team. His athleticism would bring another dynamic to the Spurs in the pick and roll, particularly with guys like Dejounte Murray and Derrick White.
Holmes is also effective on the offensive glass, which would be crucial for a team that struggled shooting all of last season.
A recent ESPN column (subscription required) detailed that Holmes will be an under-the-radar free agent to monitor this summer. Bobby Marks states the most the Kings can offer their starting center is $10.7 million.
This one is a no-brainer for San Antonio. If Holmes is available on August 2nd, you make that call, and he should be the starting center if they're able to get him.