10. Olivier-Maxence Prosper
Although the Dallas Mavericks' 2023 NBA Draft night will always be remembered for them selecting Dereck Lively II with the No. 12 pick, Dallas made a move later that night that could turn out as a massive success as well.
Dallas used a traded player exception to trade back into the first round and select Olivier-Maxence Prosper while also acquiring Richaun Holmes. Prosper was initially thought of as someone who could have a big role from day one, but he hasn't been great so far this season.
Prosper is averaging 2.4 points, 1.8 rebounds, and 0.8 assists per game while shooting 34.3 percent from the field and 22.7 percent from downtown. He hasn't been able to solidify himself as someone that Dallas can rely on, but he has seen his role increase recently due to injuries to players around him.
Prosper has played over 10 minutes in a game five different times this month and had his best game on December 11 when he scored 11 points against the Memphis Grizzlies.
Prosper hustles and his defense is coming along, but his shooting has been shaky to say the least.
Even with his struggles, I believe he is someone Dallas wants to keep around long-term. He has great intangibles, and I don't see them giving up on him this quickly.