Just by looking at this organisational chart, you can see why Apple's industrial design is so amazingly great and consistent: http://www.macstories.net/wp-content/uploads/2011/05/Photo-0....
Notice how Jonathan Ive does not delegate any work to any Vice Presidents. Compare this to other corporations and you'll see why this works so well (no giant chain of command where every member of staff is trying to put their stamp on things).