The New York Times does a look at Apple COO and Steve Jobs fill-in, Tim Cook, in, The Understudy Takes the Stage at Apple:
At 50, Mr. Cook is single and is known for his serious demeanor. Several former Apple colleagues said he rarely socialized with them. His major passion outside of Apple is Auburn football. Former colleagues also described him as a fitness enthusiast who seems to live on energy bars. He is a hiker and a cyclist, who frequently gets up at 5 a.m. to exercise — and to begin e-mailing his underlings.
That’s how the trains run on time.