It's been a week since word came that Amazon passed over Detroit as the possible home of its planned second headquarters, and most everyone has walked away with an understanding of which of the region's shortcomings are to blame for the loss.
A lack of talent and uncertainty over whether the region could attract it were among the reasons Amazon reportedly gave in a phone call with members of the bid committee. Also at issue was a lack of mass transit.
These are concepts most people buy.…