I see Doncic playing the wing. You you can slide him in at the 2-3 depending on who you play next to him, but I dont see him being the primary ball handler. He needs someone else who can attack off the dribble in the back court. Hes a passing wizard who can shred you in the PNR, but he fits better splitting ball handling duties, coming off DHOs and screens, zipper cuts, ect. Something to get him free and moving on the catch where he is attacking at an advantage.
If you slot him as the PG, I think hes going to have some struggles beating guys one on one, especially when defenses switch with unconventional lineups, or they blitz him on ball screens.
Not to mention, if his shot continues to develop, as ive been saying, he turns into a lethal option as a corner shooter and then attacking closeouts.