Former Disney CEO Bob Chapek says his predecessor Bob Iger undercut him from day one, a damning account of how the company's top job changed hands twice in three years.

• Chapek says Iger regretted stepping down almost immediately and wanted the job back.
• A month into the job, Iger reasserted himself as CEO in a New York Times interview Chapek says neither he nor the board knew about.
• Chapek told Iger on a call the next day that he had signed his death warrant, and describes what followed as death by a thousand cuts.
• Board chair Susan Arnold reportedly told Chapek not to worry, but loyalists Iger had put on the board carried more weight.
• Disney's stock went nowhere during Chapek's three years while the rest of the market climbed, giving the board cover to bring Iger back.

Outlook: The account casts doubt on how cleanly Disney will hand off to Iger's next successor, with Josh D'Amaro seen as the front-runner.