Sometimes we consultants can really make things too complicated. Faking News carries an interesting perspective on how a Chai wallah hires McKinsey to find out if he should sell omelets and maggi too. Found it very funny, which can mean that probably I am not a true consultant.
http://www.fakingnews.com/2010/04/chai-wallah-hires-mckinsey-to-find-out-if-he-should-sell-omelets-and-maggi-too/
A true consultant would be able to find multiple arguments around how McKinsey is ignoring some critical assumptions which are important to get the right business model :-).
Cheers !
