Snyder was the head coach at Marshall for five seasons (2005-09) and helped lead the Thundering Herd transition from the Mid-American Conference to Conference USA. In Snyder's final year in 2009, Marshall went 6-6 during the regular-season and earned a berth in the Little Caesars Pizza Bowl. His program produced 40 all-conference selections, including 2006 Conference USA Defensive Player of the Year Albert McClellan, who had 18.5 tackles for loss and 11.5 sacks his sophomore season. Snyder produced a 22-37 overall record at Marshall (17-23 Conference USA).