Maybe Al-Nassr will not be able to get close to Al-Hilal if it continues like this every season. We often see Al-Nassr experiencing a deadlock which ends up being even more points behind Al-Hilal and they have experienced this in the last two seasons. Everything doesn't feel easy even though Al-Nassr has upgraded its squad with European players.
Al Nassr management must evaluate their squad. It is impossible if they will keep playing like this season. Al Nassr has the money to buy new players, they must try to strengthen their squad. If we look at the stats, Al Nassr already have strong attackers but they have no strong midfielders and defenders. In the next transfer windows, no doubt Al Nassr must try to sign few players to improve the quality of their defense and midfield line. Sure, it will be always not easy to compete for the title although Al Nassr has improved their squad. But the chance should be higher if Al Nassr improves their weakness.
On the other hand, Al-Hilal also applies the same thing, but here the Al-Hilal players are much more organized than Al-Nassr and perhaps their coach is also one of the keys to their success. Jorge Jesus has indeed proven his quality with Al-Hilal and the result is that up to now they are still unbeaten in the Saudi league. There is something that Al-Nassr cannot pursue and that is a job they must complete next season.
Besides the quality of the coach, the ages of star players in the team can have a big influence. If we look at the squad quality, Al Hilal actually has better players if we consider the ages. Al Hilal star players are in their prime ages (all of them are below 30 years old), but Al Nassr star players look quite old. This can be one of the reasons why it looks quite difficult for Al Nassr to compete with Al Hilal. The physical of younger players must be stronger than older players.
Just take a look the average ages of Al Hilal star players: Rúben Neves (27), Milinković-Savić (29), Michael (28), Malcom (27), and Mitrovic (29). Meanwhile AL Nassr star players: Ronaldo (39), Mane (32), Talisca (30), Telles (31), Laporte (29), and Ospina (35).
Besides hiring a better coach, I expect Al Nassr will sign younger European players in the next transfer windows.
References:
1.
https://www.transfermarkt.com/al-hilal-riad/startseite/verein/11142.
https://www.transfermarkt.co.id/al-nasr-riad/startseite/verein/18544