To be honest it could be a misunderstanding. I have no problem with someone experienced in football handling transfer negotiations, as they will actually know when to tell a club/player to stop taking the p*ss and either accept or look elsewhere, whereas Cortese (whilst showing to be a great worker) could be taken for a mug in some situations.
It DOES NOT actually say that the DOF will be DECIDING who to buy, just that they will be sanctioning any deals.