Amy Long has held the head coach title at Saint Mary's since the start of the program in 2014.
During the Belles' inaugural season of lacrosse in 2014, Long coached the team to a decisive win over Illinois Tech and also guided the program to their first conference win in program history with an overtime victory against Trine. Long had a member of the team recognized as MIAA Defensive Player of the Week and the Belles later earned Intercollegiate Women's Lacrosse Coaches Association (IWLCA) Honor Squad status for their academic success. In the team's second season, the Belles more than tripled their win total from their inaugural year while increasing or improving in nearly every statistical category from 2014 to 2015. Additionally, two members of the team were named Second Team All-MIAA, becoming the first players in the history of the program to be named all-conference. Academically, the team continued to excel and earned IWLCA Honor Squad status for the second consecutive year.
The spring of 2016 saw the Belles achieve new levels of success after the team finished tied for fourth in the conference and set new program records for conference wins and overall wins in a season. The program had its first All-MIAA First Team honoree while also picking up recognition on the All-MIAA Second Team. The team earned their third consecutive IWLCA Academic Honor Squad recognition while Katlynn Dee was an IWLCA Academic Honor Roll honoree. The bar was raised again in 2017 as the program posted the most overall wins and conference wins in a season. The Belles claimed second in the MIAA and hosted the MIAA Tournament semifinal round while also making their first league tournament appearance. Four Belles earned All-MIAA recognition while also claiming the MIAA Rookie of the Year and MIAA Most Valuable Offensive Player. The team picked up their fourth consecutive IWLCA Academic Honor Squad honor, and three members of the program were IWLCA Academic Honor Roll honorees.
The 2018 campaign again saw the Belles set a new program record for wins in a season with 12. Additionally, Saint Mary's won their first postseason game in program history as the team made their first appearance in the MIAA Championship contest. The program yielded the MIAA Rookie of the Year for the second consecutive season as Four Belles were named All-MIAA. Erin Doyle earned the program's first All-Region honoree. Academically, three members of the team were IWLCA Academic Honor Roll honorees while the Belles earned both the IWLCA Academic Honor Squad status and the MIAA Team GPA Award for the 2017-18 academic year.
In 2019, the Belles went 8-0 in MIAA play to capture the program's first conference title. The team had a program-record six All-MIAA performers as Doyle was named the MIAA Offensive Most Valuable Player while classmate Emily Kraker was tabbed as the MIAA Defensive Most Valuable Player. Saint Mary's then had a program-best three players garner All-Region honors as Erin Doyle, Kate Kelly, and Rachael Leonard were all named to the Great Lakes Region Second Team by the IWLCA. The Belles again earned both the IWLCA Academic Honor Squad status and the MIAA Team GPA Award for the 2018-19 academic year.
The 2020 season came to an abrupt halt due to the COVID-19 pandemic. The team posted a 3-3 record prior to the cancellation of the remainder of the season in mid-March. Erin Doyle garnered an MIAA Offensive Player of the Week honor.
Long came to Saint Mary’s with a range of coaching and educational experience. She served as the head coach of the Sylvania High School Girls’ Lacrosse team and has held assistant coaching positions with the University of Toledo and Siena Heights University lacrosse programs. A Level 1 and Level 2 trainer with the U.S. Lacrosse Coaching Education Program, she teaches lacrosse coaches about the game during their certification process. Additionally, she is a U.S. Lacrosse level 3 certified, which is the top certification offered by the governing body. She has also taught undergraduate students the skills and strategies of the game of lacrosse at the University of Toledo.
Long is a 2009 graduate of the University of Toledo. She was a double major in marketing and professional sales and graduated cum laude with a bachelor of business administration. In August 2012, she completed her master of arts degree with a concentration in organizational leadership from Siena Heights University. Long completed a master in business administration at Saint Xavier in 2016.