This is where having a supply chain guy like Tim Cook is a big boon. At 25% of the market, I'm sure there are both big opportunities to leverage your position,

This is where having a supply chain guy like Tim Cook is a big boon. At 25% of the market, I'm sure there are both big opportunities to leverage your position, as well as big hazards in either managing lots of contracts, or in dealing with perhaps a small number of suppliers capable of those sorts of yields.