My concern with Baldwin is his quickness. From watching youtube videos, I'm not sure he has very good quickness for a pg. But I'm not sure he looks that way because of his mediocre handles and lack of moves or if he really is not very quick. I don't see any crossover moves or shake moves in his highlights. I'm afraid he'll turn out to be Ray McCallum with a better jumpshot.
player---------------FGAs--------FTs-------unassisted FG at the rim---% of at the rim shots, that were assisted
Baldwin-18y.o.------221----------104------------------21-----------------------------------.432
Baldwin-19y.o.------309----------
188-----------------47-----------------------------------
.175
Dunn----20y.o.-----390----------172------------------69-----------------------------------.225
Dunn----21y.o.------411----------190------------------54-----------------------------------.407
While it was a bit of a problem for him as a freshman, sophomore Baldwin had no problem getting to the rim/generating contact. In fact, his team provided barely any help in creating around the rim opportunities, while Dunn was getting set up quite a bit this season. Also look at the progress between seasons! Again bringing Russell with the same disclaimer, that Baldwin is a step slower, Westbrook is a downhill driver, not a shake down artist, and neither was Billups or bulked up version of Kyle Lowry. And Baldwin becomes very quick, the moment he stops worrying about losing the ball: there are plenty highlights, when he sees that the path to the rim is open and just goes for it. The fact, that he can get from the top of the arc to the rim in 3-4 steps, hides his speed.
Now finishing at the rim was a problem, but just from last year we have an example of Stanley Johnson, who was just as bad (in fact given, that Johnson was set up more, attempted less and wings/longer guys naturally have better finishing around the rim, Stanley was worse finisher by a margin), and was averaging .569FG% around the rim as an NBA rookie. What's interesting, with the same shot distribution, basically: .287% of Johnson's shots in college were at the rim, in the pros - .255%.
Chauncey Billups scored .425 on 2-pointers as a sophomore, Deron Williams shot .421 on 2s as a sophomore, which suggests, that they had similar problems at the rim, Kyle Lowry and Brandon Knight were higher at around .460 on 2s, but only Billups was comparable as an attacker/creator of his own offense in the paint with FTs/2ptFGs ratio above 1.0.
EDIT: Remembered another guy, who had randomly low 2ptFG% as a sophomore, and this one wasn't a PG or even a wing. Kawhi was a full-time face-up 4 in the college, and managed same .478 2ptFG% as Stanley Johnson. And that was as a sophomore unlike Stan, so no wonder, Kings passed on this bum.
Now obviously I'm only mentioning positive cases, and I'm absolutely sure, there were multiple guys, who were decent prospects, finished badly at the rim in college and didn't make it in the NBA, but these examples show, that if the rest of the game is there, bad rim finishing numbers in college is not a prohibitive or even limiting problem.