UBS chief executive Sergio Ermotti
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Can new boss at UBS bring about vital change?

17 November 2011 Last updated at 10:46 GMT

The new UBS Chief Executive - Sergio Ermotti - is under pressure to prove he has the right formula as the patience of shareholders runs thin.

In recent years UBS has suffered a series of setbacks.

In September, London-based UBS trader Kweku Adoboli was arrested and charged with fraud and false accounting.

Russell Padmore reports.