My experience is that when managers stop doing their jobs, people start working on whatever is the most fun, stop doing boring stuff like testing if their code actually works if you leave the happy path, and ignore customer bug reports because they are too hard to reproduce right now. Then they present their super awesome new software architecture that they spent a month working on that doesn't solve any problems except implement the devs vision of a framework for inverse dependency injection or whatever they read a blog about last week.