I dont mind selling Buffon at all, for a 20+ mln, but Chielo is probably the only player atm that I dont want to leave Juve, if we did that kind of shit and sell him, even if we use these money to bring Sanchez/Pastore/Neymar/Hazard/Menez type of players, our defence would be a total joke and there wont be a single team in Serie A, who will not be able to score against us... A complete joke, selling Giorgio would be the biggest mistake we can ever make. Buffon on the other hand is a Superman who slowly loses his powers, he is not that solid at all since he returned, if he wants to leave and we receive an interesting offer, I would understand the board, Storari already proved, that he can get the job done, he may not be a world class goalie, but is still very good and with a very good defence in front of him (with 2 solid FB's and Chielo + Bonucci) he`ll be great.
Also, if we skip Bastos and manage to get Menez instead, I would be really glad. He is a world-class-player-in-the-making!