The Libertyville-Vernon Hills Area High School District 128 board on Monday named Jon Guillaume as Vernon Hills High’s next principal. He’ll start in 2014, replacing current Principal Ellen Cwick. Cwick announced plans to retire at the end of the 2013-14 term in 2009. Guillaume now is the school’s associate principal in 2010. His salary has not yet been determined.Copyright © 2013 Paddock Publications, Inc. All rights reserved.