[amirmc]

What you've described is fundamentally a problem of communication.

You don't need to do multiple roles in order to understand them. You do need to listen to the feedback from each different area and then act on it so that your decisions don't create unnecessary work for others.

The restaurant scenario is one I've heard before and it's the literal version of putting yourself in the other person's shoes. Not workable in every situation (but kudos for having the balls to do it.)