Beth is the project manager of the KJH project. Sarah is Beth's administrative assistant and Ben is the project team leader. Beth's project has eight virtual teams throughout the world that will be working on the activities relevant to the deliverables in their locales. Thomas, the project sponsor, has told Beth that he is to be kept abreast of all communication between her project and the stakeholders. In this project, who is the lead person responsible for communication with all stakeholders?