It’s extremely rare these days to have a stadium not named after a corporation. Organizations just make way too much money in selling naming right to hold their ground. For every Yankee Stadium, you get a Metlife Stadium. For every Dodger Stadium, you get the Staples Center. Since all most owners care about is money, they are going to take every opportunity to sell their souls for the all mighty dollar. Jerry Reinsdorf is the Darth Vader in Chicago.
The owner of both the Bulls and the White Sox, Reinsdorf sold off the naming rights to both of his home venues.