Interesting view from Jobs in todays "Inside Apple" from Fortune...
Jobs imageines his garbage regularly not being emptied in his office, and when he asks the janitor why, he gets and excuse: The locks have been changed, and the janitor doesn't have a key. This is an acceptable excuse coming from someone who empties trash bins for a living. The janitor gets to explain why something went wrong. Senior people do not. "When you're the janitor," Jobs has repeatedly told incomping VPs, "reasons matter." He continues: "Somewhere between the janitor and the CEO, reasons stop mattering." That "Rubicon," he as said, "is crossed when you become a VP."