I think Napoli President's decision to go for either of Igor Tudor or Fabio Cannavaro if they eventually sack Rudi Garcia is best known to him because I feel that there are better managers that can improve the performance of Napoli even when Antonio Conte has rejected the offer to take the managerial position at the club. Tudor and Cannavaro I don't think possess the right tactical experience to manage a big club like Napoli. Rudi Garcia is still the current manager of the team and until he's sacked and any of the managers listed is appointed, I still think the news are mere rumours
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He's already made a post saying Napoli will send offers to Igor Tudor later today to complete everything. Once completely done Rudi Garcia as head coach of Napoli would be no more.
Manchester City signed him for 49 million euros but now his market value seems to be 28 million euros. They must be aware of the fact that they can't sell him by making any profit from now on. But they would still like to sell him at the earliest opportunity as it seems. Juventus had better benefit from this chance as they might be able to sign him without paying too much money.
If they don't have a better alternative than Kalvin Phillips in mind then they should go for him. Pogba is no use for them and it has always been like this since he joined them from Manchester United.

Paul Pogba shouldn't have returned to Manchester United, Jose Mourinho lead to both his movements and his fall. Amso injuries caused a major part of his inconsistency for Manchester United and he was having no proper defensive midfielder to shield right behind him.
Pep Guardiola wouldn't have much difficulties with players sale, player will be sold if they come to conclusion.