Who oversees Apple's Supplier Responsibility/Corporate Citizenship?

[Squidoo02]

I know there's a "supplier responsibility" team, but who do they roll up to? Apple's corporate social responsibility/corporate citizenship is such a mystery...

 

[miles01110]

Tim Cook.

 

[thewitt]

Why would anyone need to "oversee" this outside of Apple? It's not like they are a government agency or anything....