One thing about the Kellogg P/T program is that they require you to be fully employed to apply to it (I asked the Adcom). In my case (living and working in NYC), I can't apply to Kellogg PT because I would have to quit my job and move to Evanston and find a new job THEN apply (which is not a sure thing anyway).
Chicago PT does not have this limitation nor does Haas. I don't think Stern has that limitation as well.
JZD, I think you have rather strict interpretation of the Kellogg rules. Just because you may have to be fully employed to apply does not mean you need to be fully employed after application. Also, I can't imagine any school not allowing someone to quit their job and look for something else during their MBA studies. In other words, quitting your job at NYC and moving to Chicago and looking for an another job should be perfectly acceptable.
Finally, worst case scenario, no school in the world would dismiss you as a student if you can't find a job.