How would blockchain help in this case? Not sure I get the idea... Blockchain within an organization doesn't make any sense. I've had different managers and they were horrible or useless for the most part. Usually in big corporates they're useless and in startups they're too cocky and bad team players. Though, there are good managers out there but it's pretty rare.

You need a manager to resolve conflicts between peers, to hire/fire people and to report to upper level. That alone takes a lot of pressure off a team... I've had experiences on both sides, management and individual contributor. Being a manager is pretty stressful for these 3 reasons. Other than that, it either falls into micro management or into a tech lead role. As soon as a manager starts getting involved in technical decision it usually goes against the tech lead of the team or architect. If a manager asks for status updates constantly it's pure micro management and against the Project Manager.

In other words, conflicts between peers, firing/hiring people and giving status updates on all the major issues is something that is hard to automate. We do need managers, but we need them to stick to these 3 things and that's it.