I'm fine with toning down the hype a bit, but honestly, what do Vescovi and/or Bailey do better? I'll agree Vescovi catches more grief than probably deserved from our fans, but he has earned quite a bit of it, as well. And Bailey is merely a spot-up shooter, and a streaky one at that.
Powell's stats come from an admittedly small sample size, but what you see on the floor is pretty evident. He's already, at worst, an equal ball-handler to either Bailey or Vescovi. He is bigger and better at getting to the rim on drives. He's a better rebounder than Bailey and at least as good as Vescovi, if not better considering their relative size. As noted, a limited sample size, but he appears to be just as good of a shooter, and his size lends to his advantage there, again. Bailey and Vescovi may both be better FT shooters, but Powell shot 76.5% on 34 attempts, which is probably enough to justify that he isn't going to fall completely off that mark. It's hard to imagine he'd be a worse defender than Bailey and I'd imagine is at least close to Vescovi, who isn't great, himself.
I'm fine with the belief that Powell won't come in and take their playing time with little effort, but I just don't see where Vescovi and Bailey are clear upgrades unless you think Powell's 10 games at Auburn were a total fluke.