> the 5th by a person extremely non-commital. This person avoids exerting any technically authority, so as not to disturb the team's balance. All decisions are made democratically, all votes being equal regardless experience/seniority. Same goes when being called for estimates.

This is a very common failure mode for first-time leaders and managers. They optimize for minimizing conflict and want everyone on the team to like them.

A difficult lesson to learn in leadership positions is that you can’t make everyone happy and you can’t avoid every conflict.

Hyper-democratic leadership styles don’t work outside of very small and tight knit teams where everyone was already on the same page.

Someone needs to pull that person aside for some intense coaching to train them out of the mindset of people-pleasing and into the reality of getting work done. It’s not a fun transition but it needs to be coached. This is one of the turning points where many people realize they don’t want to be in leadership or management roles because the difficult decisions and uncomfortable conversations are in conflict with their personality.