Amazon Program Manager - Supply Chain interview questions

1st phone interview was basic questions. Lasted about 30 minutes. 2nd phone interview was strange and what I consider to be a bit twisted. My 2nd phone interview was conducted by a gentleman (rhymes with Bip) I looked him up on LinkedIn prior to the call, had my company research done etc. Bip had an MBA, but not a lot of retail supply chain experience. He asked me to help him with a problem he was having at work, the head of their division wanted a certain project done, this project would require an IT system changes. He said that the manager of IT wouldn't do the project. Assuming since he had an MBA, he had already done the basics of ROI, Business Case etc. I began to ask if the IT manager reported to the head of their division? Since Bip had an MBA and had been working their almost a year, I assumed that Business Case, ROI etc had been conducted. Lesson learned here, don't assume. The second circular question was the Amazon Japan division was receiving too much inventory on a particular item. I asked if the fulfillment system was a proprietary system? He said, yes. I began to describe "Root Cause Analysis" to rule out system problems at Amazon prior to contacting the supplier. Wrong, the answer Bip wanted was to contact the supplier first. That was the end of my interviewing and till this day have not heard anything back from Amazon. There were a couple of other questions, which I don't really remember the details, most likely don't recall them due to the rabbit holes I had already been down with this interviewer. This interview occurred in June 2012; to date, I have never heard a word.