Bonifacio and Malinov are staying with the team but Bonitta prefers Chirichella and Folie, so I don't think they will ever play in WGP. Arrighetti wasn't even visible during the whole matches, hopefully she gets better, because otherwise Italy won't have any points from the middle. Chinchilla is pretty good, but not sure if she's ready to play starter.
I am a fan from other country, as i thought the italian team needs time to adjust and deal with the loss of L.bossetti and that is why they did a mess when they faced Brasil. we cannot blame all to piske or chirchella since the setter in the first week hardly pass the ball to them and also because of the loss of bossetti, the transition was a mess. I agree piske is not as aggressive as gioli but still she can get the points if she got the ball more often. In the last two matches this week, we can see she is getting better when she got more chance. She maybe not a superstar but definitely a star in this team, so give more trust, the team cannot go further if u only rely on Nadia! As for C.bossetti, i have to say i am very disappointed of her, she should pay more attention to the court and try to catch up with her sister! Chirichella did a pretty good job as a new bee, very brave and passionate! Malinov is also a promising setter and look what she just did in the past two matches this week, if u did not see her face, u would think that was a sophisticated player! I guess right now it is time for leo to retire from the national team, the team strives for new blood and according to matches, all of them seem to be capable to do the job and if it is a must, i prefer gioli to be back! 
What is the deal about Thompson? What is special about her that I don't see but coach sees
