The external drivers are the risk areas that are most commonly thought of by managers.
This is for exactly the reason that they are external and therefore may be perceived as
‘unmanageable’. The risks of unpredictable demand, unreliable supply and the effects of
external shocks in the business, social and climatic environment are all the areas that we use as
scapegoats for unexpected outcomes. The internal drivers of process, control and
mitigation/contingency are more tightly under the direction of the company itself and are
therefore less obvious as being sources of vulnerability.