We took over local school boards across the Nation quietly in the past and the Leftists were not ready. So that is why I suggested they do it quietly.
Run on whatever appeals to parents, get in and then ream the leftists into orbit. “We are changing the focus to academic performace and moral independence.” We had an agenda that was politically stated in an acceptable way - a total change of direction, before we went in and popped it on them.
Be a wise cabal....like your enemy only for good instead of evil. It takes the lefties at least two years to figure out who you are and that you are setting out to retire them.