yes that is clear. Napoli have become the leading team winning trophies this season and there is no miracle for other teams to bother them, even though Lazio have been quite impressive lately, but they will not be a team that will disturb Napoli ranking on the standings.
the team under napoli they are only targeting to qualify for the champions league next season, now the possibility of a revenge event might be seen at the meeting between ac milan vs napoli in the champions league maybe that is ac milan hope to make napoli fall in the champions league.
Napoli position at the first position is like rock and can not be taken over by other clubs in Serie A. They are just counting down their time to lift the Scudetto and they are not too far from that time.
Lazio are on fire recent weeks and they successful took over the second position from Inter Milan and AC Milan and they also successfully to secure their second position very well. Their realistic target is to protect their second position as AS Roma are following them with 5 points less. Between Roma and Lazio is a long historic competition and they will not want to lose the runner-up position to Roma.
Yes, Inter deserved congratulations for them for being able to steal the victory in the first leg which took place at home to the opponent. inter milan was able to show a better game in the Champions league even though inter milan in serie A they were relatively unstable in a number of matches which made them shifted by ac milan and roma.
inter milan seems to focus enough of their energies on the Champions league. In my opinion, Inter Milan already has one foot to reach the semifinals and they must defend it during the second leg match which will take place at the San Siro.
I don't think Inter Milan don't focus on Serie A but they just don't have good performances recently. In Champions League, Inter Milan did not actually play too impressively and they won matches on slim verges between win it or lose it. In a match with Benfica, they did not play much better than Benfica but eventually they got a super late second goal which likely will help them to appear in semi finals.