I'm probably lacking in imagination, but I don't understand why it has to be complicated. Under the right circumstances, it would just entail to NOT act upon intelligence about an impending coup attempt? Just check that you have support from other key parts of the military, then wait.

To engineer something like that, yes, that sounds very complicated. But to see an opportunity rise and grab it, does not sound impossible. It's plausible, I'd say. I look forward to watch the documentary in 30 years... ?