Not that it makes much of a difference for either guy, but Ayton played the 4 in college and we made him a 5. Styx was a 5 that we made into a 4. I still think Ayton is better as a 4, but we don't have a 5 to start for us.
Ayton had a clear position, it was center. But Arizona already had a true center, Ristic, who needed to be on the court but was incapable of playing anywhere other than down low. So Ayton played the 4 but he moved to the 5 when Dusan wasn't in the game.
Stix doesn't really have an NBA position, at least not yet. He doesn't know how to play the 4 position but he lacks the ideal size, length and strength to play the NBA 5 spot.
Right now center might seem to be the best place to play him but that's because of how out of place he's looked at the 4. If he gets with the right team and fills out some, he could end up being a threat at the 4 but if he settles in at the 5, I don't like his chances of becoming a rotation player at this level.