The result means Napoli remain two points ahead of Inter at the top of the table.
Spalletti said, “These players deserve compliments, because you keep telling us we are fortunate – and we are happy about that – but my real fortune is that I get to work with these players. You don't seem to realise it yet, but that is a great fortune.
“We played a very good game tonight, but it could also have been played better. Napoli did very well, as at times it feels like you are playing against aliens, as they do everything one-touch football and flick it up, over, behind. They have this possession and high-paced football.
“There are times when Napoli move the ball around at a thousand miles per hour. I can't get my team to do that, so coming away with a point and threatening to achieve even more is positive.
“We are learning, but have already made important steps forward and frankly could've won it."