The object of discussion was actually Director of Football Operation, in charge of Academy (i.e. Butt's boss) and other operation stuff. I would imagine pitch management, stadium staff kind of non-sales/commercial staff. Because there is another commercial director responsible for revenue.
Most fans here mis-understood the position of Technical Dir, which was what ZZ held, and that Maria Russian held in Chelsea. They are responsible for player acquisition. SO when Conte said he doesn't want to sell any DMF because he needs 4 of them. Maria would say tough luck because the offer is good. So she will get him Drinkwater as replacement. In another instant when Conte wants a striker, Maria would say sorry too expensive we can't afford him, how about this instead. It would be like a Technical Dir bought all the food ingredient for the kitchen and Conte does the cooking only.
Funny part is, Koeman was sacked because of the lousy mis-fit players that he bought. LVG to a certain extent fell under the same sin. But Maria never gets the sack for the sake of continuity.