i don’t need to be any kind of a coach to find you placing Kournikova (0 tournament wins, never mind 0 majors) in the same company as Graf, Navratilova, Serena, Hingis etc utterly laughable.
And, you try getting into MIT - it’s far from elitist - you earn your spot regardless of income. Only...
Mentally strong, excellent technique, particularly good second serve and the most important thing, she is extremely smart….like MIT smart. She’s here to stay and could dominate over the next 5 years at least.
speaking as someone who works in a leadership position at a large agency, I think you will be proven very wrong. Endorsements were already being lined up well before today. Her parents are smart and not desperate for money, I believe she will be managed intelligently and not over exposed/exploited.