While charisma is nice, CEOs sleep better at night if they know their financial statements and internal controls are being closely monitored by someone they implicitly trust and respect.
It is easier to see how collaborative technologies can improve market share externally, but the latter two statements towards the value of internal collaboration are quite eye-opening (and smile-inducing to me).
Acting on behalf of the U.S. government, he destroyed the credibility of Bill Gates in the 2000 antitrust case by goading the Microsoft chairman into making broad statements that were contradicted by internal e-mails.