I have pretty direct knowledge of this situation due to my line of work. I just want to point out that if you want wifi, that's a conversation you can have with the school, but the cell service part is between you and your carrier. The schools can want whatever on that angle but they can't make the wireless companies spend the millions and millions of dollars it takes to build and keep a stadium system up to date. Without connecting dots, of the four main wireless companies in MS (CSpire, Verizon, AT&T, T-Mobile), one has its own system in DWS, a second has a much more complex system that they share with a third carrier, and the fourth has nothing. Those systems are very expensive and complex and require a lot of equipment space that doesn't necessarily always exist, and they lose money. A lot of money. They're not even close to profitable, and they're only used seven days a year.
Not saying anybody's wrong to want better cell service.....I get it, I'm there too, but it's dependent on who your carrier is, and frankly it's also dependent on where you sit. Just wanted to add some perspective.