I don't think it will down to Tici itself , he must getting report from the coach that does not want to use him. Think that Romero is falling far behing the pecking order so for sustainability the only logic way is to sell him as near as his book value. That is because he deemed surplus to requirement. If Pirlo really sees him as a great defender, he is actually the most fit player into the system as he can play in 3 man or 4 man defense and that hybrid shit will suit him the most The truth will come out later, but the fact that we can't ignore is that we are the selling club for some years and we trade players for lesser players too.
This happen to sustain our high wage bills and get some money to invest elsewhere. Kean sold to Everton , Spinna trade with Pellegrini, Cancelo with Danilo, Romero, and now Demiral. We even loaned out that Pellegrini just to soften our wages while put Frabotta there. And for Tici defense he did great investment in De Ligt, Chiesa and Kulu. I will say Rabiot will be great too but that only happen if he reach the performance of 7m salaries players. With that in mind, we can say that we snap him for free. If he can justify his salary with us, then other clubs will be okay with his salary when they interested in him and that is some other 50m+ profit
All of this profit combine will dwarf that 4.8m minus from Romero transfer. This is just my thinking with positive view about our situation regarding Romero
And I believe no one in Juventus will know that he will explode in Atalanta in such way and winning Copa America after he left us. If that is not the case, he will saw just as 20-25m valuation players. And that is not really much different from our total fee received