Imagine, for a moment, that you're relaxing at home with a glass of wine watching the news when a feature about the child-labour strategies being employed by one of your suppliers gets transmitted to roughly a million people. Then, just for good measure, your own company gets mentioned as being one of its best customers.

What would you do? Would you be able to react swiftly and decisively?

It's roughly what happened to Tesco after the UK's Newsnight broadcast a piece on child labour being used to harvest cotton in Uzbekistan. The UK's largest retailer has now reacted to the news announcing a ban on all cotton sourced from Uzbekistan for its clothing, homeware and corporate purchases.

But it took three months to annouce the reaction. Is this too long or should corporates risk strategies be able to cope with situations such as these quicker and more decisively?