To be frank, Ziegler rarely started in preseason so it's clear that De Ceglie is the preffered choice for Conte. The difference between Grosso and Ziegler is also not really big, both are inadequate for Juventus.
We got him for free and if we'll sell him we get around 4-5 millions. It's a good bussiness, cause i do not like him very much anyway. But sticking with just DC and Grosso isn't very good choice.