The way to overcome the destructive effects of a narcissist is to begin to understand how his mind works.
How to manage a narcissist.
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It seems that it is almost inevitable these days that there will be some personality disorders in a senior management team.Ref Unfortunately, in the case of narcissism there is little that the leader or other senior management team members can do for the narcissist as the likelihood of change in his personality disorder is slim. As Ronningstam and Gunderson put it, "For clinicians, the assiduous and sustained resistance to change common in patients with narcissistic personality disorder (NPD) has been especially noticeable and trying."
So if denial and distortion fail, the next step for the narcissist is projection. Perhaps the only solution for an organisation faced with a destructive narcissist is to force him into a narcissistic breakdown. As Kernberg noted, narcissistic patients persistently deny they have any problems or limitations and consequently lack any motivation for treatment, until faced with a major failure (narcissistic breakdown)