He's the two-guard version of Rudy Gay. He's an even worse three-point shooter than Ellis (28 percent last season), and he's not much better from two (44 percent). He's not like Evans who has put up great stats that people have just failed to notice. He'd need a lot of coaching to reach his potential, but he's getting paid like he's already there. I also have no idea about his at ude.
But as you said, he's only 23, and he's a 6-7 shooting-guard. With good coaching, he would hopefully get a good shot selection. He has great physical tools as well. Since I consider the Spurs' cap space essentially house money, I wouldn't mind gambling a bit here. If he can get coached to be a plus defender, he and Leonard could be incredible together for years to come.