Two situations in a team setting that bother me more than anything are miscommunication and team members that work in silos. The only way to ensure that leadership and your team members have a common understanding of stakeholder engagement and its value is to review it with the team at the beginning of your project. Have them help you to identify the stakeholders and review how best to work with each of those stakeholders. Also, review how each of the functions represented can work together in this team dynamics. When I start up a new trial one of the first things I do is hold a team meeting to ensure everyone understands from which other functional platforms the team members are, what their role is on the team and how each of their roles affect the others.