Knoxville School Superintendent Dr. Randy Flack is retiring. At last night’s school board meeting, Dr. Flack submitted his intent to retire, effective June 30, 2014. Also discussed were the criteria for awarding a Varsity Athletic Letter in the Sports Shooting Club, and declined the request for the sponsorship of a Middle School Team. They also heard a report of the success of the High School Math Labs in helping students succeed in math, and reviewed bus routes, among other matters. An update on the new security system was also heard. Minor problems occurred yesterday when it rolled out, but problems should soon be fixed.