Accountability and Incentives.
If I do good work or bad work and get paid the same, what is the incentive to do better?
You cannot establish accountability without having an incentive plan for achieving milestones.
Holding your teammates or colleagues accountable is fundamental within a good working process. Being accountable means, you are expected to justify your actions or decisions.
It DOESN’T mean punishment, knowing something isn’t working in a process and saying that something went wrong is not a failure on a person’s ability to act, it’s a failure of the process to be able to account for variation.
We have to remember “Process not people”, which means we need to ensure mistakes don’t happen and not blame the person doing the work. Human failure accounts for 2% variation in a given process, if its more than that I would assume you have some continuous improvement to work on.