$1)$ What is Apple's strategy? How important is the iPhone to Apple and what challenges are the company facing?

$2)$ In your analysis of the iPhone supply chain, do Apple's supply chain capabilities represent a source of competitive advantage? Why or why not? What data from the case supports your analysis?

$3)$ Given the challenges facing Apple, what are the implications for its supply chain strategy?

$4)$ If you were in Tim Cook's shoes, what steps would you take to improve Apple's supply chain? Why?