NWA's HQ

Where's Northwest Airlines's Headquater? A staff who worked for Northwest Airlines for more than half a year do not know where's the headquarter when she was doing the assessment prior to her confirmation. It was a very simple 50 objective questions! There are 4 choices given : Memphis, Detroit, Minneapolis and Portland. The correct answer should be Minneapolis but this fella answered Memphis... can you imagine that? We kinda disappionted with her answer.. as she has a very colorful US Map saved as her desktop. Yet, she still ask us where is Austin/Boston/Philadelphia and etc... and we will answered : go, check it out at your desktop! She got it few times from me already... She's brainless and we are speechless.......