This isn't necessarily the advice you asked for, but my immediate question was "why is a single department making their own mission statement?" Obviously I know nothing about your team and your larger museum, but something as serious and thoughtful as a mission statement feels like it needs to be shared across the whole institution, rather than any one department. If the museum has one declared, supposedly unified mission, and then individual departments start making their own, what's the point of the institutional mission statement? Put differently, what is missing from the institutional mission statement that makes a department feel like they aren't on board with the mission, or included in it? And if your museum is lacking an overall mission statement, maybe you have the chance to use the work you're doing to lead the way to creating something meaningful that will reach far beyond your department and will shape your institution for the better.
Again, this isn't the question you were asking, but it's the question I asked when I saw yours. You know what you need more than us random Internet strangers, but I just wonder if there's some departmental and institutional introspection that needs to happen.
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Sean Mobley
Volunteer Coordinator/Podcast Host
The Museum of Flight
Seattle WA
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