UNC Football: Professor Mack Posted Feb 25, 2019 "It's not whether you're 67 or 27, it's whether you can communicate with people," Mack Brown said. "That's all it is. It's communication—and doing it confidently. It's having eye-contact. It's remembering names. And it's bringing something interesting to the conversation." Brown was visiting Econ 325 as a guest lecturer at the invitation of Johnathan Robertson. (GoHeels.com)