Hmm not so sure about youth, only dybala and rugani are the stand out young players we currently have, the later haven't even made it into starting xi yet.
Sure there were pogba and morata but we lost them.
As for now though, it is imperative that we get one or two new quality winger and/or amc, a quality mc, and younger reliable fullback or two.
Bringing caldara and orsolini here faster should be an open option though.