It's uncertain what caused it, but the first cracks are appearing in the honeymoon between Apple CEO Tim Cook and company employees.
After being named the top CEO of 2012, Cook slipped to 18th place, behind Google and Amazon. According to employment site Glassdoor, Apple employees gave Cook a 93 percent approval rating, down from 97 percent last year.
By comparison, Facebook CEO Mark Zuckerberg jumped 14 points to land in the top spot for 2013 with a 99 percent approval rating from employees of the social networking giant...