Natasha here works for the Guild at Edith Cowan Uni as a P.A, supposedly for the President himself. However that actually means that she does what the Guild Manager says as well, along with everyone else who thinks that they deserve some dogsbody to run around after them ( she doesn't - Natasha tells them to get stuffed... or words to that effect)
In reality it means that she effectively runs the Guild though because half the time she's the only one there and since she co-ordinates everything, she's the only one who truly knows what's going on anyway