Amazon Fulfillment Networks

I am a long time supply chain designer and engineer.  So it was interesting to see how one of the biggest retailers on earth addresses the problem.  In RetailingToday. Fulfillment here, not the same thing as a manufacturer's end to end supply chain, but it turns out also to be very complex.    Mostly a surface description, but with some interesting implications for all supply networks.   And how they evolve.   Also very heavily number driven and leveraged by anaytical needs .