Starbuck’s new mandate is the latest evidence of a growing gap between the flexibility given to the boss and everyone else, says Bloomberg Opinion's Beth Kowitt. NEW YORK: New Starbucks CEO Brian Niccol sent a stern warning to employees this week: Get back to the office three days a week or risk termination. Pity the internal comms people who had to pass on that message with a straight face. The decree comes only two months after the company hired Niccol with a contract that lets him keep his