I think the competition at the bottom of the Serie A standings will be quite tight. because at least the bottom 4 teams have a tight point difference. that means they also have the same performance.
Now it's just a matter of looking at the team that can recover the quickest. whether it's Salernitana or 3 other teams including Verona.
However, everyone doesn't want to be in the relegation zone. but they have to show improvement in their performance if they don't want relegation.
In all leagues, the relegation zone is actually fatal, meaning that all clubs don't want to enter that zone. Just from the preparations for the start of the season and also sometimes other teams in terms of overall improvement are better than those who are currently at the bottom of the standings.
If you look at the standings,all four of them can still compete and there is still hope of getting out of the relegation zone, their points are not much different, at most they are only a few points different, but all of that could happen if they don't immediately clean up to get out of the zone.
The relegation zone is actually created for clubs that are not ready to compete with the league they are in, so if they don't want to enter, at least they have to be able to try as hard as they can to get out of the zone. If there is no relegation zone, of course clubs will not compete competitively so they will surrender to the situation. Moreover, with the relegation zone, other clubs below the main league will also feel like they are competing with the main league, making the league a fair and competitive league. Only clubs that are able to maintain their performance can escape the relegation zone.
Verona, Cagliari, Empoli and Salernitana still have a chance to get out of the relegation zone and they have fought as hard as they can so far, if they can't survive and their performance doesn't improve of course they will fall further behind and will most likely be relegated, indeed the relegation zone looks scary for any club, therefore a club must be able to improve its performance to compete in the main league, I mean the Serie A League.