Fast Company has an interesting interview with Bob Messerschmidt, formerly of the Apple Watch team.
This made me LOL out loud:
If you talk to an engineer at Apple they would say “we make all the decisions and marketing has no power.” And “there’s really no marketing at Apple,” they would say. Then there was this whole building, one of the Infinite Loop buildings, that was full of marketing people. And I thought “that’s interesting; I wonder what those guys do.” Then I would have meetings with some of the marketing people and they would say “You know it’s interesting; we make all the decisions at Apple—the engineers make none of the decisions at Apple.”