my sister is running. but just how big will the wave be?

so, for those not following along, my sister is running for the dupage, IL county board. i am managing her campaign. formerly solid red county, now quite purple, the center of IL 6th, one of the most flippable seats in the country.

she won her primary, as did the other woman up for the 2 seats. (it is a vote for 2 situation, 2 dems, 2 thugs for 2 seats. there were 3 dem candidates, the 2 women won.)
the local party had a strategy of running someone for all 12 of 18 seats up this term, and many folks stepped up. there were more candidates than seats. they encouraged all of them to run, but also asked them all to pledge to drop out if they werent the top vote getters, to avoid losing to ticket splitting. they all signed a pledge.

w the blue wave cranking up, the second place candidates are mostly all refusing to drop out and a bit of infighting in the local party is muddying the waters. the local indivisible group thinks all 12 can win. in my heart, i think they may be right, but i try to be aware of my bubble.
the #2 candidate is not as good as sheila. she is a true heart who stepped up, like so many others. but she has not been very political in the past, and does not have a lot of time to be out there doing retail politicking.

so we are left w the political version of the prisoners dilemma, i guess.
anybody have a crystal ball out there?
what would you do? lean on #2 to drop out, or try to carry the ticket and hope for high water.
i'm at a bit of a loss this minute, tho the wheels are turning.
really want to hear from the brain trust here before i act.

what say you du?