Sorry but he's right -- you're a sofa-based armchair CEO, while cook is CEO of the biggest most profitable tech firm in the history of the planet, and has been the right hand man of said firm for 15 years. He's an operations man and doing a fine job. The design team is as well.
I can guess your parents were quite bad at parenting. Otherwise you wouldn't injure other people just because you don't like their opinions regarding phones and other tech stuff.
Being promoted to the CEO of "the biggest most profitable tech firm" doesn't make you any smarter than you are. And many CEOs in history, even in the history of Apple prove that. Cook can be good at operations but that's all.
Can you backup your claims regarding the fine job of the design team? iOS 7? iPhone 5c? Lackluster sales of iPhone 5c?
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Mactendo is out of ideas.
Pedrotaquelim is out of ideas