If we look ahead to the season, here’s a list of NBA point guards who are 6'3" or less and are…
Lon Shapiro

Pt. taken, but most teams cross-match opponents’ offense focal pt., so if Ball develops as projected, assume he’d be going against Bazemore/Smart/Batum/Shumpert/Bradley/Thompson/Paul/Oladipo/Beverley/Conley/Richardson/Brogdon/Butler/Holiday/Roberson/Payton/Hill/Green/Lowry/Rubio/Wall (adding KCP helps, but still think teams’ll put their weaker guard-defender on him & dare him to prove it from deep)