ATLANTA — There will be a football game here at noon Saturday. Mercedes-Benz Stadium is sold out. Football fans in Penn State and Ole Miss sweatshirts dot the streets of downtown, inside Centennial Olympic Park, and the line outside the World of Coca-Cola museum. Saturday’s Peach Bowl is a New Year’s Six game, which means it’s supposed to be a big deal. It matches the 10th-ranked Nittany Lions and 11th-ranked Rebels. James Franklin vs. Lane Kiffin. The new era of college football, though, has rendered this game more of an exhibition than anything meaningful. Less pageantry, more nihilist fanta…