I was hoping you would get responses from others this time around since we've communicated before but looks like I am all you've got at this time.
I think I would make the case that a non insurance option should be offered because insurance products are more expensive and not everyone wants an insurance product. Explain the layer of fees including surrender fees which non annuity plans do not have. Also say most good plans offer at least one low cost- non-insurance- non annuity mutual fund option. I would show the chart that shows that over time those annuity fees eat in to returns significantly . I would also direct the personnel director to this site. I am not sure you will be able to get Vanguard or Fidelity to sponsor your plan but you might be able to set up some type of brokerage or self-direct account that would allow you to link to any fund you want with mininimal additional fees. Aspire would work in this case.
Remind her that firemen in particular would benefit from a lower cost because you guys retire earlier than most other professions and could profit from the lower fees. The other thing is to show her what a good 457b plan looks like. Here is the one I am in which is with Blackrock which is impressive: http://www.varetirem...d-profiles.html
When you push a 457b change I would encourage them to Add Vanguard, Fidelity, TIAA, Aspire, or TRowePrice or Blackrock products. You won't get them all added but any off them would be better than what you now have by a mile.
Also if your personnel person is not an in- the- know -finance person you may have to speak on his/her level. Explain it on a 5th grade level. Also make sure she doesn't go to an insurance person for advice because they will only lead her back to annuities for obvious reasons.
Let us know how it goes. You are doing a great thing.