I'd take a chance on Diallo. Definite swing for the fences type pick. my issue with him is that like Exum, he didn't dominate in HS - I certainly wouldn't take him #5 overall for that reason, but at 24 or 30, yeah, i'm good with it. and because he's an explosive, above the rim leaper he has a higher ceiling the Dante too.
First time i saw his highlights, DeShawn was the first name that came to mind. they are pretty similar coming out of HS, but that doesn't mean they have to be similar going forward. DeShawn never was a consistently good shooter and never developed as a scorer - if Diallo can develop in those areas, he could be very good. But even though Deshawn was somewhat disappointing to me and other fans, dude played 13 seasons in the league and was a rotation guy most of the time - that isn't bust for the 23rd pick in the draft.