Emily Marcouiller was named the Florida Southern College women's soccer assistant coach in March 2022. Marcouiller came to Lakeland after spending two seasons as the women's soccer head coach for Spring Hill College. She was previously Spring Hill's interim coach during the 2019 season and served as the Badgers' assistant coach during the 2017 and 2018 seasons. Marcouiller also served as the Senior Women's Administrator and Deputy Title IX Coordinator while at Spring Hill. 

In her first season with the Mocs, Marcouiller and head coach Paul Lawrence led the Mocs to the most successful season in program history in the fall of 2022. Florida Southern garnered its first SSC Regular Season Championship going 12-1-3 during the regular season and appeared in the fourth-ever NCAA tournament, before beating Mississippi College on Nov. 11, 2022 in double overtime for the program's first NCAA postseason win. After an NCAA second-round exit to top-ranked Embry-Riddle, Florida Southern completed the 2022 season with 13 wins (most since 2008), eight conference wins (program record), 45 goals (third-most in school history), averaged 2.37 goals a game (second-best), and new school record with nine shutouts in the season, allowing only 15 goals all year. Assisting the strong backline, Florida Southern also had an All-American selection with Morgan Collica named to the D2CCA All-America Third Team in 2022. 

Before her time with the Badgers, Marcouiller  served as the Girls' Academy Director for Tennessee Soccer Club (TSC) in Nashville, Tenn. where TSC recently had taken steps to join the Elite Clubs National League, the premier league competition for girls’ soccer in the US. TSC also had seven teams win Tennessee State Championships, nine teams attend US Youth Soccer (USYSA) Championship Series Regionals and two teams compete at USYSA Nationals, one of which won a National Championship in 2017.
 
Prior to her time with TSC, Marcouiller served as the head coach at St. Cecilia Academy in Nashville where she led the program to three district championships and four trips to the elite round of the Tennessee High School Athletic Association (THSAA) playoffs. Under her development and leadership, the girls’ soccer program earned 28 All-District, 20 All-Region and five All-State player selections with Marcouiller earning Region Coach of the Year honors.
 
Marcouiller was a Girls’ Director of Coaching at Harpeth Soccer Club for six years prior to leading the program at St. Cecilia. She was the direct point of contact for all coaches, referees, parents and players in programs. She was at the forefront in the technical development of the girls program while working hand-in-hand with players and staff to contribute to success of the younger athletes. She also assisted in the promotion, management and oversight of the competitive tryouts and program advancement.
 
On the field, Marcouiller had extensive playing experience that included competing at the NCAA Division I level with the University of Nevada Las Vegas (UNLV) where she graduated in 2006. She then moved on to semi-professional play with the Las Vegas Tabagators. Marcouiller holds her NSCAA National Diploma and USSF National licenses.