I have read people brainstorming ways to avoid taxes, but I have not seen anyone suggesting ways to evade taxes. There is a big difference. Avoiding taxes is legal, evading them is not. In any case, people were just throwing out ideas and trying to think outside the box to come up with new ideas. Later they can go back and investigate some of those ideas and figure out which ones are good and which ones are bad. Right now, we don't have enough information to make a decision about what exact course of action to take anyway.
There is no corporate scheme that has been presented. Only ideas from individuals. Those ideas do not make up a scheme because they are simply ideas that may or may not be acted upon based on further review. A scheme would involve a finalized plan that has already been made with the intention to do something unethical or illegal.