Are you kidding me?
At least a quarter of NBA's D squad pros play in KezarStadium's 3 on 3 league nowadays. Most teams, there's at least TWO current college players, and they never get near quarters.
The team I subbed in, the center was an all star from RiordanHigh, at 6'9". The PF was LoyolaMaramounts starting PF, one of the guards was playing 2 guard at CCSF, and we didn't go anywhere.
We played a team that had KevinJohnson AS A BACKUP. Kevin of the PhoenexSuns.
Do some research on SanFrancisco's KezarStadium league. Probably at least 50 players who made the NBA played in those games.