Can someone tell me what does a casting director do actually? I know an agency go through hundreds, thousands, of girls to find the next catwalker du jour but in the end who decides who gets hired? Do they option the designers like 200 girls, and the final say of the 50 who walk comes from the brand? Or is it both? Or the brands leaves it up to the casting director to fill the show with whoever he/she see fit. And who decides who closes, who opens?
The reason I asked is because, from many model's thread I've been, when a model gets hired, people credit the director (Marsh' girls, Ashley Brokaw's girls, etc etc) but when she's not hired, people get angry at the designers. So what is the process really? It sounds very interesting to me. Can someone explain to me how the machine works?