Communication plan is a policy driven approach to provide stakeholders with the information. The plan defines who should be given specific information, when that information should be delivered and what communication channels should be used to deliver information. I think it is better to have common communication management plan than the specific to a project. It will save time, the protocols needed to follow will be same. It will save resources and it will be cost effective. It will be more convenient. There will be more real time interactions which means there is instant feedback which will allow the team members to get the solutions. It fosters a sense of community as it will be more social interaction.