I'm not a manager and have no aspirations at all to be one, but I have worked with plenty of "complainers".

Usually what complainers complain about has nothing to do with why they are unhappy. Way too often frustration with people is pointed at circumstance rather than trying to productively sort out the conflicts between the individuals.

And here is where management usually fails. A person complains about unrealistic time plans or how crappy a product will be, so management jumps into action and invent over elaborate processes around securing deadlines and quality, rather than splitting up the dysfunctional team that can't / refuses to cooperate and therefore is always late and produces sub-par quality. And the team will still be late and produce bad quality, and the complainers will still complain.

> so management jumps into action and invent over elaborate processes around securing deadlines and quality, rather than splitting up the dysfunctional team that can't / refuses to cooperate

Yes, I've seen this!

Then they fire the dysfunctional team, but the problem was the incompetent management.