I believe if you are not accepted in the rolling process (within 2-3 weeks of interview) or miss it you go to the final pool phase where they still have acceptances to give out along with all alternate list spots. They meet every Tuesday night and make decisions from the final pool starting about now until the week of March 15th. I don't beleive they reject or offer alternate list spots to anyone that has interviewed until the week of March 15th when they establish their final ranking of alternate spots.