Just a thought, here's an approach for anyone asking about changing a work situation:
Hi, has the museum ever tried _______ to improve the _________ project?
Those questions are well received because suggestions for improvement are a positive thing. Don't condemn the work of others or the way a project is conducted in front of everyone, it doesn't help anything.
Also, if questions are asked or suggestions made, don't be upset when someone replies "oh, we thought of it or we tried that 10 years ago and it didn't work". Remember, many projects and varied types of work have been done at the museum in years past. The fact that we have members who have volunteered for 5, 10 or 20+ years is a wonderful thing.
This year is the 20th anniversary of the first Work Weekend with planned goals. In October of 1997, we spent Columbus Day Weekend building the first curve and grade crossing on the mainline. It was a lot of work but the job got done and we were happy to have accomplished some "firsts". After the track work, the train could be run far enough north that you didn't see it from the depot, that was a big thing.
The spirit of that first Fall Work Weekend still lives in the excitement of what we can all do when a bunch of volunteers get together with a specific goal. We will do the same thing in two weeks and I look forward to seeing everyone.