I wasn't talking about race. But when people talk about improving an area of a city, they generally ultimately mean changing demographics (I'm talking mostly economically here).
What you describe is still gentrification. The word has a racial connotation, but it really just means replacing one urban demographic with another (more wealthy) one. It is also not the only recipe to restoring blighted urban areas, but it's hard to argue with its effectiveness.
With regard to the cities you mentioned, the only one I know much about is Pittsburgh...and they moved their stadium from a bad part of the city to a better location that they could more easily invest in...so pretty much exactly what the Braves are doing. People are just upset because it's not going to be located downtown, but it won't be far away, either.
Make no mistake, Cobb County is not the North Shore of Pittsburgh.
Maybe we can walk (underneath the interstate) to Cumberland Mall and go to Costco and the Cheesecake Factory after the game.
It's a suburban hell, and the real estate investment potential there outside of the land the team already owns is minuscule.
As for the distance from downtown: in miles, sure. In actual travel time? It's easily 45 minutes to an hour away.
I still don't understand how anyone thinks the Braves can stay in the same location and improve it just by throwing in a few restaurants.
To be frank, it doesn't appear that you are trying very hard.