By ESPNSTAR.com staff
In August, Conte was handed a 10-month ban for allegedly failing to report two incidents of match-fixing while in charge of Siena.
The 44-year-old Italian has been restricted to training the squad during the week, with technical director Massimo Carrera and assistant manager Angelo Alessio taking charge on matchdays, but Conte will return on December 9 after having his ban reduced by six months on appeal.
Chiellini believes the return of the manager to the Bianconeri dugout will give the team an "added edge" as the current Serie A champions look to build from last season's success.
"He's the person who has changed the team over the past year and a half," Chiellini said on the club's website.
"I initially thought his absence would be less problematic. We work with him throughout the entire week and prepare for the games in the best possible way. But there are things that you can't plan for and the manager is important in certain situations."
Top of the table Juve next face Lazio in Saturday's Serie A fixtures before an important UEFA Champions League home game against Group E rivals Chelsea.
"We're used to playing a high volume of games. Now we've got important ones on the horizon, but we must take each game as it comes. I don't think we should allow ourselves to look too far ahead," he said.
"The Chelsea game is an important one, but it's not the final group game and therefore isn't decisive. It will take four points to go through to the next round, but we could also take three in the final game.
"We'll start by considering Lazio. We've had an excellent start to the championship campaign and have a four point lead over Inter. But we can only aim for another title victory by gaining consistent results."
Juve currently sit one point behind joint Group E leaders Chelsea and Shakhtar Donetsk, who both have seven points after four rounds in the Champions League group stage.