"The executive also led feature-implementation across the operating system, and he managed both bug-fixing processes and feature distribution to consumers."

This statement is interesting to me. My understanding of Apple's organizational structure is that individual leaders are given broad responsibility for specific things. As I read this, my impression is that Mr. Lamiraux was the buck-stops-here guy for any and all bugs that come through iOS. (Among other responsibilities.)

Inside Apple, is it that literal? I contrast that with other software companies, where those responsibilities are largely delegated out to many different people, but there is rarely a single person who is accountable. For example, I could never imagine a single, go-to individual at Microsoft who would be responsible for the bug-fixing process in Windows 8.