software for manager office organizing

I am looking for a software solution to help me manage and organize my manager's office. Specifically, I need the software to include task management capabilities so I can easily track deadlines and progress on projects. Additionally, I would like it to have document storage and communication tools to help facilitate collaboration among staff. It will need to be a Windows-compatible program and I'm not yet sure how many users will need access to it. If you think you can create a software that fits this description, please get in touch and let me know what you can do.