I read an article on exactly that premise -- how to destroy a group by making sure that it accomplished nothing -- and your strategy was implicit in there. I tried to link it but I can't -- oh wait, it's part of a CIA field manual [1]. Simple but containing deep wisdom.
There's the notion of "vetocracy", which has been proposed by Francis Fukiyama, in an interview with Ezra Klein (see: "Francis Fukuyama: America is in 'one of the most severe political crises I have experienced'" <https://www.vox.com/2016/10/26/13352946/francis-fukuyama-ezr...>.
Power structures tend to form either where a single individual can bring things about, or where they can prevent their occurrence.
In a consensus organisation (either intentionally so or de facto), the individual or faction which can prevent business from transacting has effective control. If there are multiple such entities, what results is gridlock. This is unfortunately one potential failure mode of democratic or representational government.
[1] https://www.openculture.com/2022/01/read-the-cias-simple-sab...