Losing full points in one games make the first position standing gone and replace by second position team, looking forward if bigger team like Inter, Juventus and Milan back consistent performance I think they have chance lead Serie A standing position awhile. I doubt with AS Roma how many weeks keep consistent performance depending again with bigger team always failed get full points.
Napoli is currently playing very well. it's like last season, it all depends on how consistent he is in every game.
but seeing how the standings are 5-8, this makes Serie A fans of course surprised. the difference in points is not too big. there is still a chance, but seeing Milan, Juve, Roma, and Inter struggling at the start of the season, of course, is not good.
The ones that interest me the most in my opinion are Roma and Juventus. they look really bad this season. since it's still early I guess they should fix this error soon. if still want to be in the top 6 until the end of the season.