An enjoyable read by Jason Snell for iMore:
It's brutally tough to change corporate culture. Fortunately for Apple, change is its culture. By revisiting decisions made under Jobs, Apple's current executives are actually honoring Jobs's legacy. In a way, Jobs has given his successors a powerful gift — carte blanche authority to call 'em as they see 'em.
That's an important distinction that Jason makes. It doesn't mean that Apple's culture won't evolve over time. What is does mean, however, is that Apple can make some important and/or significant changes without changing its culture - as change is part of its culture.