OK so here's my best attempt at a neutral breakdown looking at his positives, the things he needs to work on, and causes for concern.
Positives:
1) first thing first, not all shooters are created equal and you cant tell how good someone is by just looking at percentages.
some guys are only capable wide open and off the catch. Some guys are more capable of making 3s while closely guarded, but still only in after being set. And yet others are able to create their own 3s and make them in difficult circumstances.
Curry would be the extreme example of the latter category. Max Strus would be an example of the 1st. One of those types is obviously more valuable to an offense than the other.
I think Agbaji falls into that 2nd group. He has to be set but he can make them while guarded.
he was at the top of this class in terms of catch and shoot 3s. And it was more than just a high percentage, it was high volume. And considering the Cavs were a bottom five 3 point shooting team last year, it is definitely a need.
2) he has a good deal more length than Okoro and a pretty solid build. There is hope he will be able to more adeptly handle bigger wings, even if he isn't ideal.
3) improved every year. Shows signs of a guy who works hard in the offseason and still might have room to grow
Things to improve
1) Hollinger does a good job of laying this out but he's not impacting the game in enough other ways considering his offensive limitations. This is the part that's very Okoro-like. He needs to make a commitment to rebounding the ball. He needs to become better at playing passing lanes and getting deflections.
2) has to improve his midrange game, at least a bit. Just abysmal when he put the ball on the floor and shot anything other than a layup.
Concerns
1) first is that he's a senior and those areas of improvement become harder to address. The longer you're in college the more likely your weaknesses are to stay weaknesses.
2) we've talked about the Bill Self guard stuff at length so I'll just touch on it briefly: how guys are coached means more the younger they are. It's like learning a language. The earlier in life the easier. It's not a coincidence that Self guards don't seem to translate to the NBA, despite many of them having all of the physical tools.
3) and this is the BIG one: his shooting numbers off the dribble were so bad that you have to be a bit concerned his catch and shoot numbers were just a freak year. And we have definitely seen that before.
My best outlook:
He's a guy who can be more than just a wide open catch and shoot offensive player. I think his volume points to a player who will be able to take and make contested 3s off the catch. Something basically only Kevin Love can do on this team currently.
I don't think he's gonna develop into a guy who can reliably create and make his own 3, even off of just one dribble.
But if he's a 38% 3 point shooter who can make a reasonable amount of them while contested, that's a win.
On defense he has a shot to help the Cavs in an area they are lacking. But they'll need to really coach him up on that end AND turn him into a rebounding guard.