As the longest-tenured active part-time coach at Wheaton, Bob Roscoe enters his 18th season in the Lyon softball dugout in 2013.

Roscoe's initial year coaching softball at Wheaton was 1996, but by then he was midway through a 14-year stint with the women's volleyball program. He was an assistant volleyball coach from 1989-2001 before serving as a co-head coach in 2002, helping the Lyons to a 15-16 mark. During Roscoe's tenure with the softball squad, the Lyons have qualified for seven NCAA Tournaments, including three trips to the College World Series.

In 2003 and 2004, Roscoe was an assistant women's volleyball coach at Salve Regina University. He then served on the Bridgewater State College staff for four years, including being elevated to head coach in 2008. During Roscoe's tenure, Bridgewater State qualified for four NCAA Tournaments and won four Massachusetts State Collegiate Athletic Conference (MASCAC) Tournament titles and at least a share of three regular season crowns.

Roscoe also coached girls' volleyball in the Junior Olympics for six years and has coached Massachusetts youths with the Brockton Juniors, the Coastal Volleyball Club and the Bay State Juniors.