I think we just have to trust what this club is. There's still a bit of an inferiority complex around here, given where we've been in the recent past, but Juventus is in it's ascendancy again. This is a very attractive club to players again, with a very stable administration, stable finances, and a plan for the future.
Pirlo sounds as though he's staying (I really think he wants Euros, and sees the potential in this team), Vidal said he is honoring his contract, and Paul will be here at least until summer 2016 -- which is when Carlitos' contract expires anyway. Also, if we did sell one of those guys you mentioned, there's going to be a lot of money for some pretty good talents. I like where we're at. Carlitos, Pogba, and Morata may all leave in 2016, but I still think we'll have those guys this season.
There will be future market opportunities, for sure, and I think we're going to enjoy the incoming players quite a bit, too.