Now that i think about it , it should be nice to see how the captancy situation develops . If i remember correctly conte was captain before del piero , than del piero became captain even through conte was still at juve . I think that at the time conte was still more influential than the young capitano , but the decision was made because he was more of an image of juve , he was the symbol , raised at juve became a champ there .
You can think the same about the chiello - marchisio situation . Following logic marchisio is the most suited since he is more of a symbol (even through chiellini might be more influential) , but conte may lean to leave the captancy to chiellini because he reminds him of his situation when he lost the armband , althrough conte's infinitive love for marchisio and how he sees himself in him is widely known . It will be interesting to see how it will develop