“One reason women avoid stretch assignments and new challenges is that they worry too much about whether they currently have the skills they need for a new role. This can become a self-fulfilling prophecy, since so many abilities are acquired on the job. An internal report at Hewlett-Packard revealed that women only apply for open jobs if they think they meet 100 percent of the criteria listed. Men apply if they think they meet 60 percent of the requirements.”