Of course, this was not really a lie, Jake sought to hire David Falk because he realized that he would not have the time or prestige to negotiate contracts with companies and basketball teams.
Even if Jake was a great player he would just be a rookie when he entered the NBA, he would have to enter the draft on any team that chose him and could not negotiate a contract as good as David managed with Adidas.
So Jake learned that it would be better for him in the future if he just delegated tasks to the qualified people, so he had Emily who would forever be his right hand in business, he also wanted to hire Haruto to help him and Emily, and also to help look after his businesses in the future.
Jake also counted on Frank Davis to take care of his training for marathons or any type of athletics, and if Jake really decided to become an actor he would count on a professional to help take care of his career.