we have to realize there is simply no place in the team for Rovella if we dont see Locatelli as regista. Its reported Allegri finds bringing in regista is crucial for this team. Rovella is promising and all, but i would have many doubts for him beign our starting regista for next season. So buying the starting one makes sense to me. If it should be Paredes is another thing, injuries are worrying, but if its a loan deal with right no obligatory redemption then its not that bad.
Now with Paredes coming in we have:
Zakaria, Miretti, Pogba, Locatelli, Paredes, Rabiot, McKennie.
Thats already 7 midfielders, Locatelli, Pogba and Miretti are considered unsellable for the club, so we were trying to offload one of Zakaria, McKennie (not sure here) or Rabiot, but it didnt work out. There is simply no room for Rovella in this squad from the squad rules perspective. It could probably be possible for him to stay if we offloaded one of the three guys and Fagioli takes their place as he is HG, but with out that sale its not possible.
Anyway i feel much more comfortable going into season with Paredes as regista than Rovella/Locatelli. Loca simply does not work as intended there and Rovella is still big question mark for a big club like Juve, he would probably be eaten by pressure after first few games.