Here is an interesting case from Idaho. A Boise charter school is closing because it's enrollment declined and now it can't make payroll. There is certainly an element of mismanagement, but the other side is that Idaho has a law that allows school districts with declining enrollment to use prior years' enrollment to offset a single year decline. The courts ruled that this law doesn't apply to charter schools.
Charter schools aren't protected by the district and they aren't protected by the state, even though they are public schools. Seems to me that by most people's definition of unfair, this is unfair. Wouldn't you say?