Best theory yet. Still doesn't explain why he didn't do a Florida, City University of London, Liverpool, or Heriot-Watt DBA. But maybe Capella was convenient, he knew someone there, didn't really care about the status, was too busy establishing successful centers at elite universities, writing books and consulting for major corporations. Probably didn't bother with those details, just ticked the box. I'm not one to question his decisions too much, they worked for him and as an academic, if I'm a 4 on a scale of 1 - 10, he's a 9.