The privatized charter sector has spawned a mutual protection society.

Eva Moskowitz’s Success Academy needs teachers. Despite the charter chain’s glorious test scores, the work environment is not good. Teachers drop like flies under the pressure of imposing rigid discipline on children of color.

So SA teamed up with The New Teachers Project, now known as TNTP, which was originally created by Michelle Rhee (although some say Wendy Kopp was the real brains behind the startup).

The two organizations need one another. SA needs teachers, TNTP has a desperate need for revenue.

A happy marriage.