Juve could only draw with Torino on Saturday as their top four hopes hang by a thread. An error from Dejan Kulusevski led to Toro's goal.
Marchegiani said, “It's a constant.
"It seems like a team that has difficulty in always getting into matches in the same way, which instead was a characteristic of the winning and ruthless Juventus of the past years.
"(Sporting director Fabio) Paratici said that in recent years they have always changed, perhaps this time there was an error in the changes.