Jobs did not organize Apple into semiautonomous divisions;
he closely controlled all of his teams and pushed them to work as one cohesive and flexible company,
with one profit-and-loss bottom line.
"We don't have 'divisions' with their own P&L," said Tim Cook. "We run one P&L for the company."
In addition, like many companies, Sony worried about cannibalization.
If it built a music player and service that made it easy for people to share digital songs,
that might hurt sales of its record division.
One of Jobs's business rules was to never be afraid of cannibalizing yourself.
"If you don't cannibalize yourself, someone else will," he said.
So even though an iPhone might cannibalize sales of an iPod,
or an iPad might cannibalize sales of a laptop, that did not deter him.