Shooting Guard: Devin Vassell
At shooting guard in a dream starting lineup is Devin Vassell. For that to happen, he and the Spurs will still need to come to an agreement on a new extension. Assuming that happens, he could be the team's long-term answer at shooting guard. This considering he will still only be 28 in five years and has the makings of being the third-best player on a good team.
Vassell showed off his shot-making last season, both from three, where he made 38.5% of his seven attempts per game, and from mid-range, where he displayed an impressive pull-up game. Vassell should be able to expand upon those skills as the team gets better, and he could form a deadly pairing with Wembanyama. Wemby will draw plenty of attention even away from the basket, and the Spurs could use him in handoffs to free up Vassell for an open three.
Or Vassell could use him to run pick-and-rolls to generate shots for himself and give him the chance to expand his playmaking abilities. His shooting will also allow him to play off-ball and still be a reliable third option. Defensively, he wasn't as good last season but should be able to bounce back going forward now that he is healthy. Vassell will be a key part of the Spurs' game plan on both sides of the ball for years to come.