The Secret of Tsl: The Revolutionary Discovery That Raises School Performance

- Builds on the author's growing reputation. Making Schools Work influenced New York City Schools Chancellor Joel Klein's effort to radically decentralize the nation's largest school system. Seven of the ten largest school districts in the u.S. have now implemented the decentralization championed in that book.

- Based on a groundbreaking study by the author. Ouchi studied 442 schools in Boston, Chicago, Houston, New York City, Oakland, St. Paul, San Francisco, and Seattle that have embraced school decentralization. He shows how decentralization has improved school performance as measured by standardized tests.

- Explains the key to school success. Principals must be given control of their budgets and other authority. When they are empowered, they allocate funds to increase the number of teachers and lower the Total Student Load (TSL) per teacher. TSL is the key factor in school performance. Principals with autonomy invariably lower their school's TSL.