Pogba came fresh off the bench in a situation where the oppositions were also tired already while Vidal started and got himself another match in less than a week. Shouldn't read too much into it for now.
http://www.goal.com/en/news/10/italy/2012/10/20/3463782/carrera-juventus-more-attacking-than-napoli
So Carrera is still taking charge? Or is it Alessio?
Jack is only doing his part :D
I bet he believes Juve will win every match and won't have any shame bragging about it with his friends IRL but he can't get out of the pessimist mode here because he's too afraid of jinxing the unbeatable run. :P