I don't think he really fits as a RW... not very agile, lacks explosion, can't use his right foot.
But the class is undeniable. He's an old school player, like a poor man's Dybala.
I think he really needs to be deployed centrally/free roaming. The CM possibility is temptating, but I really don't know if he would have the stamina for it.
Anyway, perfect sub/rotation AM. I do think it's his ceilling though. Although quite useful, not reallly Juve starting material imo.