ピオリア・チーフス
After his playing career, Pappas became the hitting coach for the Peoria Chiefs. Pappas spent 2006–12 at the Cangelosi Baseball Academy in Orland Park, Illinois, while also serving as a scout for the Texas Rangers from 2005 to 2009. Pappas became a coach in the Cardinals system as the Springfield Cardinals Hitting Coach for the 2014 season.