On Sunday, Conte hinted he could be on his way from Juve at the end of the season.
"If you ask me, I think ... Anyway, I do not think that will happen, if Conte were to leave it would be really hard to replace him, with anyone. The club is strong, and many will try to get the role of coach, which obviously has much scope," said Vialli.
"In any case, I do not know if Antonio will stay or leave. According to me it is 50:50."