Marietta College Athletics

Bill Mosca took over as Acting Head Baseball Coach at Marietta College for the 2026 season. Mosca returned to Marietta as a volunteer assistant coach for the 2024 and 2025 seasons.
 
Mosca returned to the Pioneer coaching staff after retiring from Worthington Middle School in Columbus where he served 28 years as assistant principal.
 
Mosca, a 1979 graduate of Marietta College, served as Hall of Fame coach Don Schaly’s top assistant from 1986 through the 1994 season. He helped lead the Etta Express to the 1986 National Championship. In addition, he spent five years on Coach Gene Epley's football coaching staff.
 
During Mosca’s previous stint at Marietta, the Pioneers won eight of nine Ohio Athletic Conference Championships and made the NCAA Tournament all nine season winning four Regional Championships. In addition to the 1986 title, Marietta finished third in the 1988 World Series and fifth in both the 1991 and 1992 championships.
 
Mosca played first base for Schaly from 1975-78 and then served as an assistant coach in 1979. He was a freshman on the 1975 World Series runner-up team that finished 44-6. As a player, Mosca won three OAC Championships, three Mideast Regional titles and a pair of national runner-up finishes in the College World Series.
 
Mosca was a three-time All-OAC and All-Mideast Region selection. He served as a team captain his junior and senior seasons. He was inducted into the Marietta College Athletic Hall of Fame in 2007.
 
Mosca and his wife, Mary, have two children, Matt and Annie.