Was just reading this article by Ben Horowitz. If you don't know who he is, Ben sold his software company to HP for $1.6 Billion. He is now partners in a venture capital fund with Marc Andreeson who invented Netscape.
Together they now own a venture capital fund worth about $1 Billion USD. What I found most fascinating about this article is that Ben gives no insights as to how to change these behaviours nor how to manage them. Having a number of people like this in your firm, regardless of size, can and will likely be a disaster.
It also shows that these super companies, with all their advanced techniques for screening potential hires, make as many or more mistakes as those who don't spend money on ineffective staff and tools to help them find good people.
In summary, an article like this makes me appreciate MT guidance more and more.