Is Twitter's new CEO heading toward a glass cliff?

 Less than two months into his $44 billion purchase of Twitter, Elon Musk declared that whoever took over as the company's CEO “ must like pain a lot.” Then he promised he'd step down as soon as he found a replacement “foolish enough” to want the job. 

Her appointment renewed questions about the “glass cliff,” a theory that women — as well as underrepresented minorities — are more likely to be hired for leadership jobs when there's a crisis, which sets them up for failure. The term was coined in 2005 by University of Exeter professors Michelle Ryan and Alex Haslam, and there have been plenty of famous examples since then, from Yahoo's Marissa Mayer to the U.K.'s Theresa May.