Within two years, most of the floor designers are different. The ones that did well are now the mentors, and the ones that did poorly are now replaced. This keeps the design group young and eager to succeed, which also keeps the fashion sense of the company right in the frontier as a copy-brand.
For the designers that leave Zara, whether by low win rates or by rejecting the promotion offers, there is a degree of pride and fierceness that they carry. It's like going to the top "grinder" design academy and surviving the pressure. Most will be able to find relative success in this field and will be highly respected by other designers