Popovich has had a young, raw foreign big drafted in the late first round on his roster before.
Ian Mahinmi played 46 games in the D-League as a 21-year-old rookie, but only 24 minutes in 6 games with the Spurs.
I think that provides a clue as to how Popovich might use a young, mobile, athletic, offensively-challenged big who might be lacking in fundamentals because he grew up playing soccer and switched to basketball later than when many start playing.