Rossley inherited a team that was 3–19 in the two seasons since the football program was reinstated, but quickly earned Southwest Conference Co-Coach of the Year for impressively turning around the 1–10 Mustangs with a respectable 5–6 record in 1992.
After leaving the Mustangs, Rossley spent two years as an assistant with the Chicago Bears and one year with the Kansas City Chiefs before being offered the Packers offensive coordinator position in 2000 by his former colleague Mike Sherman, who was at the time putting together his Green Bay coaching staff.
Sherman, now head coach at Texas A&M, named Rossley the quarterbacks coach/senior assistant on January 26, 2008.
Under the tutelage of Rossley, quarterback Jerrod Johnson was arguably the nation's most improved player.
Other finalists for the award were Mike Bajakian (Central Michigan), Dana Holgorsen (Houston), and Greg Forest (Cincinnati).