Bob Iger has run Disney extremely well, except in one regard: he's been unable to find a replacement. The CEO's contract has been renewed yet again, this time until July, 2019. Some people have pointed how that this timing works out well for him to launch a presidential run, but others have pointed out that as someone who doesn't love the media scrum, running for president would be a rough slog for him. Since Disney is doing so well at the moment, the board is probably happy to have him in place a few more years. But it is a serious issue that will need be addressed at some point, probably sooner rather than later.