Happiness is in short supply at work these days. Deadlines, staff shortages, productivity pressures and crazy stress push even the most talented and temperate people to want to quit their jobs. But that’s not a realistic option, even for folks in the C-suite. Annie McKee, director of the Penn CLO and Medical Education programs at the University of Pennsylvania where she teaches leadership and emotional intelligence, has a better idea. In her book, How To Be Happy At Work , she outlines three requirements that workers need to feel more fulfilled on the job. McKee spoke about the concepts in her book on the  Knowledge at Wharton show on SiriusXM channel 111 . (Listen to the podcast at the top of this page.)  The following is an edited transcript of the conversation. Knowledge at Wharton:  How many people do you think are not happy at work? Annie McKee: I don’t think we even have to guess.…