When who you’ve been is no longer who you are becoming, your identity has been disrupted. But what causes this unpredictable change or transition in one’s life is often unknown. How can one moment, experience or period in time change the trajectory of your confidence, and who you are? The concept, known as “identity disruption,” can often be the byproduct of career grief, which is triggered by change and uncertainty in one’s professional life: shifting jobs and the threat of downsizing.