Succesful investment requires diversification, the same thing is true about non-profit boards and funding. If a school board and supporters are the same group of people whose names are on five other boards, your institution is not likely to survive the down times. The key is fresh blood and appealing to those that are not your base, as well as alumni.
Therein lies the problem. Many alumni are either being supported by others and therefore cannot give back, or they have less than fond memories of the institution and feel okay with the collapse of their alma mater. That leaves the institutions no choice but rely on new donors. New donors generally want to see openness and accountability from the organization leadership in all areas (fiscal responsibility, board involvement, safety measures, etc.).
This is a universal problem and is not limited to Boro Park.