4. Richaun Holmes
The Dallas Mavericks landed Richaun Holmes in a draft day trade with the Sacramento Kings, and training camp is his chance to prove that last season in Sacramento was a fluke.
After averaging 10.4 points, 7.0 rebounds, and 0.9 blocks per game in the previous season, Holmes' stats declined exponentially last year. He averaged 3.1 points and 1.9 rebounds per game and was only playing around 8 minutes per game.
His role was minuscule as the Kings had Chimezie Metu and Domantas Sabonis playing in front of him. This wasn't an ideal situation for Holmes, as Sabonis is one of the best frontcourt players in the NBA, and hopefully he can return to being a valuable role player.
The starting center spot is obtainable, and Holmes could end up being the starting center by the time training camp is over. Mark Cuban even called Holmes "the most underrated pickup of the summer" earlier this offseason.
Even if he doesn't start, Holmes could still provide a spark off the bench. He has become known for his push shot from the middle of the paint and will be a good pick-and-roll target for Dallas guards. He is also a solid rebounder and hustles on the offensive glass.
Can Holmes be exactly what the Mavs need at center, or will he fall behind Dwight Powell and Dereck Lively II in the rotation?