Challengers have unseated at least three incumbents on the executive board of theOakland Education Association.
Ben Visnick, an Oakland High teacher and former union president, beat out incumbent Mark Airgood as treasurer. Toni Morozumi, a teacher at Montclair Elementary, unseated Tania Kappner; and Benjie Achtenberg, of Melrose Leadership Academy, will replace Craig Gordon.
Other seats will have new leaders, as well.
Isabel Toscano, a Castlemont Business Information & Technology teacher, won the open position currently held by Bob Mandel. Kei Swenson, a Fruitvale
