To effectively manage lack of clear communication in project management, consider the following best practices:

1. **Establish Clear Communication Channels**: Define specific channels for communication, such as regular status meetings, email updates, or project management tools. Ensure everyone knows where to find and share information.
2. **Create a Communication Plan**: Develop a communication plan that outlines what information will be shared, how often, and to whom. This can include updates on project progress, risk management, and changes in company strategy.
3. **Regularly Scheduled Check-ins**: Schedule regular check-ins with stakeholders, team members, and upper management to ensure that everyone is on the same page and to address any uncertainties or changes early.