Good profile by Brad Stone, Adam Satariano, and Gwen Ackerman, with some interesting details about the iPad Pro's original schedule and Srouji's background.
A little over a year ago, Apple had a problem: The iPad Pro was behind schedule. Elements of the hardware, software, and accompanying stylus weren’t going to be ready for a release in the spring. Chief Executive Officer Tim Cook and his top lieutenants had to delay the unveiling until the fall. That gave most of Apple’s engineers more time. It gave a little-known executive named Johny Srouji much less.
Srouji is the senior vice president for hardware technologies at Apple. He runs the division that makes processor chips, the silicon brains inside the iPhone, iPad, Apple Watch, and Apple TV. The original plan was to introduce the iPad Pro with Apple’s tablet chip, the A8X, the same processor that powered the iPad Air 2, introduced in 2014. But delaying until fall meant that the Pro would make its debut alongside the iPhone 6s, which was going to use a newer, faster phone chip called the A9.