I recently applied for a tenure-track faculty position. The recommendation letters were not requested when I applied. After 2-3 weeks, I got an email that my referees should send them the letters and it seems they have done some screening based on the email I got.
My question: how large is this initial long list? Will they interview (Skype) all candidates (i.e. those asked for recommendation letters) at this stage? What is the main purpose of letters at this stage?