Overall I love the idea of moving concession areas to the exterior concourse. However, don't like the look of two cement boxes being added to the North and South sides. First it would be nice if glass or another building material could be used for the exterior walls. Also it might look better if the concession build-out wrapped around the entire North/South sides.
From a concession standpoint, I wonder if they would consider a "self-help" concept for fans to purchase food. IMO it would be quicker if fans dispensed their own fountain drink or grab a sport drink/water bottle. If Casey/Kum & Go can make it work- I would think a sport facility could.