That would be the Teacher Performance Unit in New York City.
Check out this recent story in The New York Times on a new task force compiled by NYC Schools Chancellor Joel I. Klein. There are two groups, really: the Teacher Performance Unit comprised of five lawyers and a second team consultants that includes former principals. The mission of the TPU will be to remove tenured teachers for "ineffective performance" Klein told the Times.
The plan will reportedly cost $1 million a year to implement.