Two team members are in conflict: member A says member B constantly talks over them and ignores advice, and member B refuses to accept feedback. What should the project manager do to resolve this?

The most effective first step is to review the team's ground rules for collaboration. Ground rules define acceptable behavior and communication within the team. By revisiting these, the project manager can remind both individuals of their agreed-upon responsibilities and facilitate a discussion based on established norms, rather than personal accusations. Reporting to supervisors is an escalation that should be reserved for persistent, unresolved issues. Revising the communications management plan is too broad; the issue is behavioral, not a flaw in the plan itself. Reassigning a team member is a drastic measure that avoids addressing the root cause and can negatively impact team morale and project progress.