I just saw this comment in the first page of the 1142 comments on the article (above):
workerbee
is a trusted commenter Florida Yesterday
The California Charter Schools Association, a trade group that lobbies state legislators and produces public relations campaigns for its members, is one of Vergara’s main partners in the school privatization movement. David Welch, the wealthy founder of Vergara, has no background in education or teaching, so we can only guess about why he’s putting so much money and effort into eliminating teacher tenure.