During our executive coaching and transition programmes, we often find that senior leaders, though very successful, don't feel that they have accomplished everything they have wanted to. This can cause internal stress which manifests itself in many ways such as rash decision making, or poor relationship skills. 

Often the first point of call is raising the Executive's awareness to this  barrier to performance. Although it won't make the feeling go away, awareness of it can often lead to better choice of behaviour moving forward, ultimately creating higher performance at an individual, team and organisational level.