What are the typical responsibilities/duties for an interim or full position Director Of Marketing for an art museum?
https://www.museweb.net/job/marketing-manager-at-the-solomon-r-guggenheim-museum/ This listing is for a Marketing Manager at the Guggenheim. It's likely equivalent to a Director position at a smaller art museum.
The Director of Marketing will be concerned with high-level marketing strategy. Depending on the size of the organisation, a number of Managers will be responsible for managing its implementation. Execs and Coordinators etc. will carry out day-to-day tasks. The Director will have ultimate responsibility over all to ensure that the marketing programme meets the commercial needs of the organisation.