Cobolli Gigli has long been against Sarri's appointment, insisting his feud with Juve while in charge of Napoli should've disqualified him.
“For me, the job of the coach is completely insufficient," said Cobolli Gigli.
"It was a mistake to take him and a very serious mistake for him to go to a team to which he spat with words during his experience at Napoli.
"His methods? Impossible to implement with Cristiano Ronaldo."
Cobolli Gigli also took a swipe at Inter Milan president Steven Zhang.
“The president of Inter has made a mistake, he does not realise what it means to be at the helm of a great club. Fortunately for the Nerazzurri there is (Beppe) Marotta. The situation could be managed better."