There will be a new superintendent in the Lynnville-Sully school district next year.  Shane Ehresman presented his letter of resignation to the Lynnville-Sully school board at Monday night’s board meeting.  His last day on the job will be June 30.  In his letter of resignation, Ehresman says he plans “to explore school leadership positions other than the superintendency. “   Ehresman has been Lynnville-Sully’s superintendent since 2010.