Pavel Nedved struck a late winner and Ranieri said: "We know that Inter and Roma are stronger than we are, but we will try to fight alongside them. That is what being part of Juventus means.
"I made this decision because Vincenzo Iaquinta is in great shape. The team is united and we played a difficult match against a good Atalanta side. Our opponents know how to really hurt you on the break.
"I try to see the glass half full. If I have lost a lot with Juventus, it means I have faced them many times and therefore I'm a top Serie A Coach. Besides, we'll pick up points elsewhere.
"We played them on level terms with a good performance, but the class of one individual made the difference. There was a foul on Moris Carrozzieri before Nedved's goal, but that doesn't matter now. We can say it was a positive performance."