Kyle Kuzma averaged 22 points, 6 boards, 3 assists, 1 block, and 1 steal per game in SL. Kuz was 21 going on 22 that summer. He even put a 30 and 10 game in the SL championship:
https://bleacherreport.com/articles...2017-las-vegas-nba-summer-league-championship.
His career, thus far, is that of a third option, stretch 4 with okay defense. Averaging 16 points, 6 boards, 2 assists, .6 blocks, and .5 steals per game.
He is Keegan’s comp. High floor, low ceiling, 3rd option. Keegan’s offensive production will be solid, but his ceiling will depend almost entirely on his defensive versatility. If Keegan can defend 3-5, he’s well worth the 4th pick. If he ends up like Kuz and can defend only 4s and some 3s, #4 will end up being too high.