Dr. Cassel started in the Lenape Regional High School District at Seneca High School in 2003. Prior to his role as Assistant Principal, Dr. Cassel taught English at Seneca and was employed at Cherry Hill West. Currently, he is the Assistant Principal and Supervisor of Business, Technology, and Special Education Instruction. His mission as an educator at Seneca is to remove all barriers for students and teachers so they have every opportunity to be successful.