I think a quarter of the concessions should be on the outside walls of the stadium. That way you can get your drinks/food on the way to your seat, or on the way out of the stadium. Also, if you want to walk a little, you can bypass the lines inside the stadium, and get faster service at one of the outside PoS.
Also, to the ExecutiveCajun's view that we need fans helping make decisions, I agree. Do we have 2-6 retirees on this site, who would give a day or two a week to helping resolve these issues? I'm sure the athletic department would be glad to pay a 'retainer fee' of minimal cost to them, to help spurn the advancement, without having to outsource more.