One Walmart truck driver says he has 15 years left of working, and he intends to spend them hauling loads for Walmart. “Barring a lottery win or marrying a sugar mama, I don’t see myself going anywhere,” said the Texas-based driver, who asked not to have his name included as he is not authorized to speak on behalf of the company. Such loyalty to a single company is unusual in trucking, an industry notorious for massive turnover. And the Texas trucker isn’t alone in his dedication to Walmart. One...