Your colleague just got a promotion. Now, instead of being your peer, she’s your boss. Does your relationship need to change? Should you act differently, or expect her to treat you differently? In other words, how do you manage up to someone who’s just jumped a level above you and who might’ve been a friend?
"What to Do When Your Peer Becomes Your Boss" is from hbr.org, published on October 24, 2016.