Professor Eamonn Walsh:

Some people believe there should be greater auditor rotation, greater switching between firms. Some countries have used proposals such as having two audit firms perform an audit and having checks such as that. There are many proposals that go around. I have not seen any evidence that these proposed measures result in better outcomes. It would strike me that people feel good because they pushed through a reform but I have yet to see evidence that it changes anything dramatically. I may be in a minority of one.