The midfielder says he has faith in the current squad.
"Does our squad need rejuvenating? Two years ago we had a side with many 'old' players and yet we still won everything," he told Sky Sport Italia.
"At this moment in time we are going through a difficult patch because of injuries. We're always playing with the same players and it's tough to be at our best with a game every three days.
"We'll have to wait and see if anyone arrives in the January transfer window, but I have faith in this squad as it is.
"Ranieri is also the right man for Inter."