Arguments against Christensen

But there are other, more difficult to quantify costs. […] Business buyers – and the analysts who study them – simply ignore them, but consumers don’t. Some consumers inherently know and value quality, look-and-feel, and attention to detail, and are willing to pay a premium that far exceeds the financial costs of being vertically integrated.
— Ben Thompson in What Clayton Christensen Got Wrong

Good arguments against low-end discruption.

Recruiting Insecure Over-Achievers

The secret of young Wall Street is these people are essentially commodities. The banks care less about their qualifications than their work ethic. Being a Rhodes Scholar doesn’t make much of a difference when you’re a young banker. More of it is being willing to stay at the office for 120 hours a week.
Kevin Roose on Wall Street's Recruiting

From my experience in the industry, the model that Roose describes for banking very much applies for top management consulting as well.

What I'm seeing now is that Silicon Valley and Generation Y are breaking it – not to the degree that it doesn't work anymore at all, but diminishing the model's success of providing a massive competitive edge. In earlier days, the smartest, most ambitious people went into academia and public service. Later, they went into the financial services and management consulting. Now they're heading to tech companies, or (gasp) become entrepreneurs or freelancers.

Companies as cults

Why work with a group of people who don’t even like each other? Taking a merely professional view of the workplace, in which free agents check in and out on a transactional basis, is worse than cold: It’s not even rational.
Peter Thiel for Wired

With my work experience spanning one extreme mentioned in the article, Accenture, and the other one, IDEO, I can assure you that strong, tight, friendly cultures work way better at least in consulting.

Jugaad

The Jugaad concept can be contrasted with the Western (originally American) concept of a hack or kludge. Although in its general meaning “hack” is very similar to “jugaad”, a jugaad can be thought of more as a survival tactic; in contrast, a hack, especially nowadays, is seen an intellectual art form.
— Wikipedia

(Thanks to Akshan for this inspiration)