Here’s how it would have gone in a healthy situation: during the last conf call Iger announces he’s stepping down this summer or fall and Chapek will transition over to running by then. During this time Iger will take more hands off role but remain CEO and final say man.Succession planning is near perpetual... it's not like they were just like, eff it, Bob C, you're up. I was expecting a minimum of 12 months of overlap transition no matter what.
Regarding the potential political rationale, Iger also thought he could waltz in and own an NFL team and look how that went for him so I can see how that could be his (poor) thinking.
One final note, the who's up next for Bob C's role talk on the thread that went poof... didn't see Colglazier's name mentioned. He was the other half of the Catherine Powell level. Pretty sure Josh doesn't have international experience.
Staying on as a Chairman is pretty standard and NOT a transition plan.