One of the team members on your project team is what we call a "sniper". At team meetings, he will lean back in his chair and offer wisecracks and comedic putdowns any time other team members state anything with which he significantly disagrees. At the last meeting, you asked him the status of specific deliverables in the project management plan. He turned and looked at you incredulously, stating, "What deliverables are you talking about?" What is the most likely element that is missing at this point?

a) A resource breakdown document explicitly defining job responsibilities for each member of the team.

b) A human resources management plan that outlines disciplinary action for undisciplined team members.

c) A clear communication plan.

d) Work packages.