This is a huge topic - and I suspect most strategy consultants are way too busy to take the time to respond! But let me just bullet point a few of the reasons why a Board of Directors might feel the need to bring in a team of strategy consultants (as an ex-strategy consultant myself):* The client company urgently needs to take decisions about its future strategic direction and engaging an external team will allow the necessary analysis work to be undertaken and decisions to be made in a far shorter timeframe than if the Board had to do this themselves just with their in-house resources. (Think of the example of companies trying to determine the value of counter-bid that they should make for Yahoo to prevent it falling into the hands of Microsoft; Board members are capable of taking this decision themselves but bringing in an external team could allow decisions to be reached in a matter of days - and shortening the timeframe for decisions could prove to be business critical in the circumstances)* Learning from experiences in other industries. As sectors evolve, it is quite common that they face challenges that have already been overcome in other industries. So a business that needs to develop a strategy for eg. turning around customer retention issues might very well want to understand the lessons that have been learnt by mobile phone operators, gym operators, etc. There's no reason that Board Directors would have this knowledge themselves but bringing in a strategy consultancy could give the company overnight access to this expertise. This expertise could come from tapping into other sectors / markets or from tapping into the experiences of the same sector in other parts of the world. A strategy consultancy will bring expertise on both fronts.* Reasons of politics or credibility. If Board members know that unpopular strategic decisions are going to have to be taken, having external consultants reach the conclusion that these actions are needed can be less damaging to relationships within the company than the Board of Directors reaching these conclusions in isolation. Equally, if stock market analysts have lost faith in the management team of a business, the fact that a firm like McKinsey has been brought in and is endorsing the decisions being taken by management can rebuild stock market belief in the decisions being taken.There are of course many more reasons besides these, but I hope this gives a flavour for some of the reasons a Board might be quite justified in bringing in an external strategy consulting team to bolster the resources and intellect already at their disposal.Tony RestellTop-Consultant.com