Clear and effective communication in times of crisis is essential for ensuring that everyone is on the same page and knows what needs to be done. While there are many different people who could potentially be in charge of communication during a crisis, it is important to choose someone who will be able to remain calm under pressure and convey all the relevant information clearly and concisely. One person who could potentially be in charge of communication during a crisis is a team leader or supervisor - they would be responsible for ensuring that all team members are kept up-to-date on developments and have a clear understanding of what needs to be done. Another option would be to appoint a dedicated communications officer whose sole responsibility would be to manage all communication during a crisis - this person would need to be adept at handling high-pressure situations and have a keen understanding of how to effectively communicate with different audiences.