Koerner began his coaching career as the head coach for the Medaille College Mavericks baseball team, where he helped found the program. He compiled a 23–62 record in three seasons.[2] While at Medaille, Koerner helped develop the schools first ever North Eastern Athletic Conference Co-Player of the Year.[3] Koerner then left the Mavericks to become an assistant for the Monmouth Hawks baseball program. After just a single season at Monmouth, he accepted a position as an assistant and the recruiting coordinator for the Marshall Thundering Herd baseball team.[4] Koerner then accepted the same position for the Buffalo Bulls baseball program.[5]
National champion
Postseason invitational champion
Conference regular season champion
Conference regular season and conference tournament champion
Division regular season champion
Division regular season and conference tournament champion
Conference tournament champion
References
^"Transactions". www.newspaperarchive.com. Cedar Rapids Gazette. 2 May 1998. Retrieved November 10, 2018.