Enterprise architecture team

My architecture team is made up by the following profiles:

- Enterprise architect
- Data Architect
- Software Architect
- Integration Architect
- Infrastructure Architect
- Usability
- Project Architects pool
- Architecture demand manager

The department is about 25 people, including the architects and programmers. All the department's demand from the projects is managed by the architecture demand manager. He assigns the project architects to one or more projects.
Each of the architects, data, soft, etc. manages several others architects. Only one enterprise architect program is defined, covering improvements in the architecture for several areas.
I only need a business architect, for better aligning the Enterprise architecture to the business strategy and processes.