...make sure you don't accept tasks or make promises you are unable to deliver upon. Managing customer and user expectations is a skill in itself, as is prioritisation.
I'd say it's perfectly valid to ask stakeholders to prioritise tasks where conflicts occur - it's not commuting responsibility, it's making sure that their needs are addressed appropriately. The cavalier "I know best" attitude has pervaded IT for too long.
Keep Up with TechRepublic