Knowing the coaches of the schools, maybe they would still coach because they just outright like the girls and love the game. Now with that said, one would have to respect their employment status right to honor their working contract and I would bet there are a few parents who could or would step up and help out, one if that was even a legal option. Secondly, the time needed for any parent to do this would be a constraint, so maybe they practice a bit less? But the talent of the players they have would not miss a beat. I would bet you'd see the leadership of the girls step up and you'd see them out practicing on their own each day. That is the quality of players and dedication the players have had and do have in this district when it comes to this sport.
One would hope it doesn't go that far, but you do have to protect ones rights to work to a contract if there is one in play. Teaching is their livelihood and that is their first priority.
Just ones thoughts nothing more.