Prior to the draft last year, Begarin was someone who Givony of DraftExpress/ESPN thought would be a first rounder (he said top 20) if he waited until 2022, so that’s where that line of reasoning comes from. Because he’s no longer a potential draftee, scouting reports on him have dried up so I have no idea if he’s still on that development track. My guess is he isn’t that far off, as he’s jumped a level in competition with similar levels of productivity.
Madar had a huge leap last year, but has generally struggled moving up to new competition this year. His shooting has carried over, however, so that’s good. I don’t think he’d be a first, but he’s probably still draftable.
I would be shocked if the C’s don’t bring over Begarin next season unless they trade him. I think Madar will depend on his buyout and what the C’s do with their other second. I think the Celtics will have two second-round rookies because it helps avoid the tax/reduce tax bill relative to other minimum salary players.