It interviewed internal and external candidates, including some from outside the media business, according to a person with direct knowledge of the board's activities.
In this period, there were 482 appointments, of which 32% were filled by internal candidates.
One internal candidate said the board had pushed for an outside replacement.
An internal candidate will usually know the company and its culture better than any outside candidate.
Or its management may be so thoroughly lackluster that it has no appropriate internal candidates.
Finding a new chief executive is unlikely to pose a challenge, he said, adding that two strong internal candidates are already being mentioned.
"It's always difficult when you have an internal candidate who is not successful," Corran said.
A. They looked at the internal candidates, and no one seemed up to the job.
Tucker's appointment was initially opposed by several internal candidates within the department who wanted the position.
Other management jobs only went to outsiders if there were no internal candidates.