Proposal from union leader to make it easier to fire tenured teachers

This seems noteworthy, a possible inroad into changing the "last in first out" policy of teacher employment.

Responding to criticism that tenure gives even poor teachers a job for life, Randi Weingarten, the president of the American Federation of Teachers, announced a plan Thursday to overhaul how teachers are evaluated and dismissed. 
It would give tenured teachers who are rated unsatisfactory by their principals a maximum of one school year to improve. If they did not, they could be fired within 100 days.

Cautionary words:

...only school administrators should create improvement plans for a poorly rated teacher; otherwise, unions might use the process to obstruct their removal.
Michael J. Petrilli, vice president of the Thomas B. Fordham Institute, a conservative-leaning education policy group, agreed. “In any other field,” he said, “this would be considered completely nuts that a manager would not have rights and responsibilities to evaluate their employees and take action.”
He added that the proposal did not address the most pressing issue: how to lay off thousands of teachers because of budget cutbacks without losing promising newer teachers.
“Her strategy of making sure all teachers who get a negative review will get a year and 100 days, it strikes me as a delaying tactic,” he said.