For a start, credit rating agencies' own credibility hasn't recovered - perhaps it never will - from their role in the sub-prime fiasco.

BBC: Sterling steadies after loss of UK AAA credit rating

Prior to the subprime crisis, Goldman played a major role in persuading the large debt ratings agencies to upgrade a significant amount of sub-prime mortgages to prime, which were then packaged and sold them as prime.

FORBES: In Goldman Sachs We Do Not Trust

The 38-year-old had been filling the role on a temporary basis but helped England to their first major series win on the sub-continent for 20 years.

BBC: Gibson takes England bowling role

The role of the coach is to create a specific agenda, split the task into manageable sub-tasks which have clear skill components and look at the different ways a person can learn them.

FORBES: The difference between coaching and mentoring