I think they don't care enough about the Saudi Arabian league. I think the players who go there for money don't care about anything else except money. Cristiano Ronaldo, on the other hand, can't accept failure because he is completely focused on success. While he wants to be the champion in the team, the other players act like they don't care. That's why Al Nassr should send some players away and get players who can be more useful to the team.
As such, players like Sadio Mané, Jhon Durán and Marcelo Brozović are extremely talented. But at the same time, I have my own doubts on whether they are contributing to the team bonding and cohesion. Despite the presence of these world class players, the entire burden seems to be on the shoulders of 40-year old Cristiano Ronaldo. For the next season, the club management need to get players who actually care about the team rather than their own individual performances.