Just because a PM makes "the decision" doesn't mean this should not be informed by the engineers. Consensus is not needed, but accountability and buy-in of all

Just because a PM makes "the decision" doesn't mean this should not be informed by the engineers. Consensus is not needed, but accountability and buy-in of all involved is essential. Just because engineers are "informed" doesn't mean they get to make "the decision" (or indeed that they are the most suitable agents to do so in terms of goals and incentives).