The order may not be ‘defined’, but the good majority of the time the player who looks better initially ends up better. And Vlade will be judged at the end of the season, and the perception of the players will come to play.
Objectively, he will appear lower on Rookie Ladders (like NBA.com) than many of his peers, and a lot of NBA pundits feel his play has been below, not only Doncic, but other options like Jackson and Carter.
A lot of that is subjective, like the importance of per 36. It could be argued if Bagley was more ready, as opposed to other piers, he would be starting.
To my eyes his game is rough on both ends despite the per 36. His awareness on D in the team concept, offensive tunnel vision etc.
I don’t want to be put in a position to argue against the kid though, as I want to believe in him, but will call it as I see it