Money is a tool to build a system and since I mentioned several elements needed, I was talking about a system as you mean it. But before they can approach self-sustainability, money has to be used to get there. While the Saudis love football a lot, it hasn't had the same approach like in England, Spain, Italy, Germany where academies were built and football is sort of an academic subject with trainer education, managerial positions and so on and so forth. It is a cultural thing, but not as pervasively embedded beyond culture and fun and passion.
But to build such a system quickly and I think that is there goal, what other option do they have than using money and hire the right experts and whatever staff is needed?
China is an interesting story as I thought that the government was supporting it until they were not and withdrew their support by establishing these very hard financial limitations. But I think China was lacking a concept anyway and I somehow feel the same about Saudi Arabia. They had this massive push in 23/24, signed Ronaldo and wanted Mbappe for astronomic money, but that doesn't turn a country into a football nation a la England or Spain.
It is different with the Olympic games as their goal is not to become the best sports professionals in Winter Olympics, but they would like to become a lot more competitive in football I suppose. The Olympics is mainly about building infrastructure, but football is about building the entire system and that is hard not least because I think a lot of people wouldn't want a major part of their lives in Saudi Arabia, but many people are cool with living in Europe.
I believe that Saudi Arabia will fail in their plan to move football from Europe to Saudi. First of all, Saudi is very hot and playing in such a hot temperature is crazy, that's why FIFA WC 2022 was in Winter and not in summer but football players will have to play during the 4 season of the year, where spring, summer and autumn is terribly hot. Also, Saudi Arabia population is 35 million people while the population of EU countries together is 450 million people.
Even with infinite amount of money, they won't be able to do that because football is not part of their culture the way it's of Europe. Moving football from EU to Saudi will take decades, maybe even century(or s).
I think that they are gambling with it and don't care if billions of dollars are wasted in this attempt.