Exclusive IBM, which employees wryly or ruefully say stands for I've Been Moved, is once again moving its employees. On Tuesday, Big Blue shared new rules on where it expects its US sales staff to work: At least three days a week at a client, a flagship office, or a sales hub. And the mainframe giant last week told all US Cloud employees, sales or otherwise, to return to the office at least three days per week at designated "strategic" locations. Several current and former IBM employees who have...