Tenant space with some old, some new HVAC and lighting

I've been reviewing all the CI energy related credits hoping to get a clear answer. As I understand it, the CI energy prerequisite can only apply to the new HVAC systems within the project scope. We are working on a suite of offices and conference rooms in a building owned by a college. The college owns and manages the entire building. There will be new HVAC and lighting in over 50% of the suite but not the entire suite. Is the requirement for all the EA credits that the entire project area's systems meet the credits? As an example; for Lighting Control, Daylight Controls wouldn't all the offices with windows and lights within 15' of them need to have daylight sensors and controls. Or is it just the rooms with new lighting? Some LEED team members do not concur and I want to make sure we haven't missed something as we count up our energy related credits. Thanks.