I don't think there is any denying that, up to this point, VY has been a turd. From his temper tantrums to hiding out after a game sending some suicide signals, etc. he has been immature. He wouldn't take things seriously enough, wouldn't put in the time learning, etc. But _IF_ he has grown up since then, he could be pretty good. At least he has an upside. ALL the players Pgh is signing have zero upside. It's pathetic.
He would be worth bringing in but would keep my expectations low. I agree he is talented.