You touched on an important one: managing expectations. Secondarily, this also means being a good communicator with non-technical people; i.e. being able to tra

You touched on an important one: managing expectations. Secondarily, this also means being a good communicator with non-technical people; i.e. being able to translate technical concepts (and their importance on the work being done) in ways the stakeholders will understand, and help to adjust any ideas they have over the work ("why isn't this easy?").