i can give two example.
torino against roam. he played well because roma pushed forward alot (success)
torino against juve. he was outplayed. because he was controlled and space was limited (failure)
cerci isnot suitable for juve. because he needs space to show his ability. he works well in counter attach situation. while juve's opponenets try to limit spaces, so player like robben is much more useful than cerci.
i think this rumores stem from this fact that conte is satisfied with tevez-spaniard attacking line.so there isnot enough space for vucinc, especially he is too vulnerable to minor injuries.
with serious shortage of economic resoureces for buying world class player which means that juve will not find an top player to play like pirlo, so it seems that marotta is going to renew engineer's contract.