Getty Images; Tyler Le/BI
Last month, AT&T CEO John Stankey sent an unusually blunt memo to his staff. There was a lot in his 2,500-word missive, but one part really stood out to me. "Some of you may have started your tour with this company expecting an 'employment deal' rooted in loyalty," Stankey said. "We have consciously shifted away from some of these elements." It's hardly news that companies



