Doesn't the item #1 (IB's exclusive marketing agreement with KSU) create a situation where Yuna cannot leave IB Sports unless she completely retires? She would need to have KSU behind her as long as she wants to remain eligible. Even if she takes a break for a year or two, it seems necessary for her to stay with IB Sports in order to maintain a good relationship with KSU upon her comeback. According to your document, this exlusive marketing contract with KSU (June 2007) was realized right after Yuna had switched to IB Sports (April 2007) (see page 35 of the slides). This gives an impression that these three parties (Yuna, KSU, and IB Sports) cannot split.
Please correct me if I am not understanding it well. But re #2, is Koomin Bank the same bank with the one referred to as the only sponsor that Yuna got during her contract with IMG Korea? And I read in the Yuna Forum linked above that the bank sponsorship is said to have come personally. It says that they called her mom directly, rather than through IMG. I wonder if IB Sports was not involved in the process at all. IB Sports, KSU, and KB bank have tied up together. The fourth party, the Yuna as the famous skater, seems to be an important part of the business for the said three parties (like a strawberry topped on the cake).
If the situation #1 is confounded with the situation #2, I feel that Yuna really cannot leave IB Sports as long as she remains eligible. She needs to have KSU behind her and KSU seems strongly connected to IB Sports that brought KB bank (which seems like the biggest bank in Korea). And I am guessing that KB bank has not been the only sponsor of KSU that has come through IB Sports, considering the item #1.
Yet, I still wonder why IMG Korea was not successful at marketing though. Is it not big in Korea even though it is a mega international cooperation? Or is it just that IB Sports as an international company primarily based in Korea is far bigger than IMG Korea over there?
Finally, who made/influenced the decision to switch to IB Sports? Was it recommended by KSU?