On https://musicbrainz.org/series/269651f1-c945-4f60-93ca-3e06ddaa273a/edit there is a "Programme Director: David Drew" credited in relation to the series. There is no proper role for this. (Closest is "founder", but that's a serious stretch)

It happens more often a specific person or persons are responsible for the content featured in a specific series. My proposal is to introduce a more generic role "curator", as this is a generic term for someone taking care of the content of a series, event, broadcast, exhibition, ...

Ideally that relationship could be clarified to be more specific about the exact role as named.