In his first season as an assistant for the Owls, Amshoff helped FAU to the Conference USA Tournament for the second year in a row while also assisting in the development of two All-Conference USA performers, the first Owls to earn all-conference recognition in nine seasons.
Amshoff's second season brought continued success for the Owls, as they won 18 matches for the second year in a row, had three players earn all-conference honors and advanced to the conference tournament for the third consecutive year.
Amshoff was the head coach at Ave Maria University for the 2010 season. The Kentucky native also coached two seasons at Lindsey Wilson College (Ky.), where he posted a record of 43-33. In his second season at Lindsey Wilson, he guided the team to a 28-9 record in 2008, the second-highest single-season win total in the program's history while advancing to the conference finals with players on the AVCA All-American, All-Tournament and conference teams.
Amshoff was a two-sport coach while at Lindsey Wilson where he served as the head tennis coach for both the men's and women's programs. Over the two seasons, he led the women's program to a 30-9 record and the men a 25-11 mark. Both squads won back-to-back Mid-South Conference regular-season and tournament titles. The women advanced to the NAIA national semifinals each of his two seasons, while the men advanced to the second round. He also brought the school's first-ever Women's Singles National Championship and was Coach of the Year two years in a row.
In addition, Amshoff served as an assistant at a number of NCAA Division I programs, including Louisville, James Madison and Tennessee State. While at Louisville, the Cardinals won the 2002 Conference USA regular-season championship and C-USA Tournament Runner Up, while advancing to the second round of the NCAA Tournament and finished 26-8 overall as a top 25 program.
Alongside his collegiate coaching career, Amshoff coached at the Orlando Volleyball Academy and Kentucky Indiana Volleyball Academy for 16 years. KIVA and OVA are two of the top volleyball clubs in the country. His accomplishments at the club level extend through multiple Championships and top-5 finishes at Junior Olympic National Tournament.