I am almost certain they are contacting people unit by unit! I think what happens is you are offered an interview, and you have 2 days to either accept or decline. The recruiter updated everyone saying there are 160 spots for interviews. As people decline the interview (due to another job or no longer interested), that allows for more room for the next people along the list to also be contacted. I know August 3-21 is a very long waiting time, but behind the scenes I know there is a lot going on. Hope this helps! also, has anyone here been contacted for any of the Medicine or Surgical units yet?