The Giallorossi managed to beat Lazio in the Rome derby last weekend.
“We are working much better and there is more serenity,” Spalletti told Il Corriere Dello Sport.
“I have always said that when there is tranquility the qualities of the players always come through.
“I changed the formation around because I had trust in the team. The results show that we can play well and get results with a few modifications.
“Packing out the midfield can give many advantages and we will continue to work hard on this model in an attempt to improve.
“In terms of output we are currently working under our capacity but there is still plenty of room for improvements.”