Saying Topher helps run Romac is maybe a bit of a stretch. The rift-related science department maybe, and he's got some respect and authority when it comes to that, but he's not all that administratively involved.

The Doctor doesn't even know what Romac IS though. "Right, that'd be the people you're staying with. What are they? Small band of scientists? Giant secret government organisation? A corporation? Bridge club?" he asks. No, Luke, you don't have to answer that last one, it was a joke.