6. Gabe Vincent
Besides Dallas' two biggest needs, a wing and a center, the Mavericks also need a ball handler off the bench. Both Kyrie Irving and Frank Ntilikina are free agents this summer and the Mavericks need a point guard even if Irving decides to stay.
Gabe Vincent could be that guy. The 6'2 guard averaged 9.4 points, 2.5 assists, and 0.9 steals this season for the Miami Heat and shot 40.2 percent from the field. He can be both a facilitator and a score-first guard and has done a great job of stepping in during the Heat's playoff run.
Both Tyler Herro and Victor Oladipo suffered season-ending injuries in this year's playoffs, and Vincent has taken his game to the next level. In the playoffs, he is averaging 13.9 points and 4.9 assists per game, and his 3-point percentage has climbed to over 37 percent. He has stepped his game up when his team needs him most while also boosting his value as a free agent this summer.
Dallas already has a spark plug off the bench in Jaden Hardy, but having a second one wouldn't hurt. Vincent can light up the scoreboard quickly and flat-out score the ball. His smooth handle allows him to shake defenders and get to his spots behind the arc. He is also good off the catch and has a solid pull-up game inside the arc.
Gabe Vincent would be a fantastic point guard for Dallas to bring off the bench next season or even start if Irving decides to sign elsewhere. He facilitates at a high level when he needs to and is a scrappy perimeter defender with a high motor.
Dallas needs a player like Vincent and they should consider signing him once he becomes an unrestricted free agent this summer.