Yes Juventus must release Dusan Vlahovic to another club if they want to sign Romelu Lukaku. So far there have been several clubs interested in Vlahovic such as Chelsea and Arsenal, it's normal for his age and prospects to have very promising in the long term. However, if this option works, Juventus will reap losses by releasing potential young striker Vlahovic by recruiting Lukaku from Chelsea and having to make a bidding war with Inter Milan. Considering that Lukaku is 30 years old and Vlahovic is still 23 years old, I think from this point of view that Jeve was wrong in recruiting players even though he had the advantage of letting Vlahovic go.
It is true that until now there has been no clarity regarding Lukaku's contract, Inter Milan has not been able to meet the price desired by Chelsea's management, The Blues want Vlahovic to be an option for Juventus to hijack Lukaku from Inter Milan.
And Vlahovic did not manage to become the main striker in Juventus in full, then injuries also knocked him out for a while. Alegri understands that Juventus needs a more punchy striker, maybe Vlahovic is still too young and he needs more experience. I saw the news that PSG were interested in Vlahovic, I'm a little surprised if Enrique can be interested in him, I think that he can be slow for the way Enrique plays.
In truth, despite his tender years, Vlahovic has harnessed the power to embolden Juventus' attack, leaving me far from convinced that he has faltered. Rather, Vlahovic must now convalesce until he reemerges with unyielding might.
As for Vlahovic's response to Paris SG's proposal, uncertainty engulfs me. The air is rife with unsavory whispers surrounding this rebuff, and my inclination is that Juventus ought to retain Vlahovic, shaping him into a triumphant striker for their cause.