The list of what we don’t know is long. At this point, it’s quite possible the school is not in charge of the lawyers. It’s possible the insurance company is in charge, whoever insures the school against claims like this.
However, the dispute is not at this point about the facts decided during the criminal trial. The dispute is as to whether the school discharged its duty to safeguard the children in its care. No matter what the verdict on that point, the school can only lose through a public trial.