The Wisconsin teacher brain drain

Gov. Scott Walker and the Republican Legislature in Wisconsin passed a law that took effect on Wednesday, June 29, 2011, that caused a major brain drain of veteran teachers from public schools across Wisconsin. The Associated Press obtained documents, showing twice the number of public school teachers jumped ship in the first half of 2011 than in the two preceding years. What has been called a mass exodus is a brain drain of veteran teachers, happening during a time when the federal government under President Barack Obama introduced school reform measures requiring highly qualified teachers in school districts across the nation.
A teacher in Green Bay, retiring after 24 years said:

"You can't get experience through a book, you've got to teach," she said. "I think a lot of talent has been lost."

 While, a superintendent of schools in Beloit said:

"It's a significant loss to our system, it's a significant loss to education...We lost a whole bunch of talent and a whole bunch of talent all at the same time. It disrupted the normal cycle."

And already some boards of education around Wisconsin took  punitive measures certainly to continue the teacher hemorrhage from the schools.
In Walker's union  busting bill:

The law takes away the right of teachers and other public workers to collectively bargain over anything except salary increases no greater than the rate of inflation. It also disallows the automatic withdrawal of union dues from workers' pay checks and requires unions to vote annually on staying organized, making it tougher for public sector unions to stay viable.