We should let him go there on a season long loan where we have the option to bring him back in the winter if necessary. We have Dybala, Mandzukic, Higuain, Cuadrado, Bernardeschi, Pjaca and Costa above him in the pecking order and there is absolutely no need for him unless we get an injury. Otherwise all he will get are 2 minute cameos in Coppa games, nothing more. I'd rather not hinder his progress, as his potential is massive if nurtured right.
There's more to gain than to lose IMO. If he showcases his potential in Serie A on a regular basis we can finally count on him as a potential starter. Right now he's still a prospect rather than someone established. If he ends up playing like shet, well, that's good too as it shows he still needs time.