SEE HERE:
https://en.wikipedia.org/wiki/Peter_Ueberroth
Ueberroth created a committee of over 150 members (mostly business people and entrepreneurs) to generate ideas, opportunities and solve problems.
His aggressive recruiting of sponsors for the 1984 Olympics is credited as the genesis for the current Olympic sponsorship program.
Due to recruiting competitors between the Los Angeles Olympic Committee and the United States Olympic Committee (USOC), after 1984 all Olympics in the US had their local organizing committees enter into recruitment agreements with the USOC to jointly recruit sponsors and share revenues.
That was before LA reverted to Mexico.
Back then Los Angeles was part of the United States, so that certainly helped them.