I'm a huge Evans fan. But though his defense has definitely improved over the course of this season, I do believe he would still be a liability in the NBA. Teams would just target him over and over again. His shooting is great, but he's called Slim for a reason: 6-6, only 175 lbs. I think he'd get pushed aside and beat a lot. For this reason, I don't think he'd be a 1st round pick at this point. Of course, if he goes off for 30 in the NCAA Final, there may be some GM willing to draft him, especially if they have the picks. The hype machine would be in effect here.
He could be a 2nd round pick. I would think teams might take a flyer on him there. But he could become a 2-way player instead of getting a full contract, or just play in the G-League the whole year. I think then the road to a max contract may be as long in this scenario as just staying in college. For a guy like Flagg, it's a no brainer. He will get a full rookie contract from the start, maxing out the rookie scale as the #1 draft pick, and he'd be one year closer to that generational wealth. But for a late 2nd rounder and the money? That where I think NIL can really come into play to get a guy ready to be drafted in the 1st round and be more guaranteed of a full rookie contract and the money years to come.
9F