To dream of your coworkers reflects the way you interact with them. This could indicate any conflicts or bonds that you share with them. It represents your aspirations, hopes, efforts and tendency to debate with others.
If the coworkers in your dream are not your actual coworkers, then they may symbolize an aspect of your personality that you need to alter or improve.
To dream that you are training someone to take your place implies that you are ready to begin new projects and encourage personal talents and abilities to grow. You have adopted new perspectives to replace previous ones. *Refer to Office.