2025 Las Vegas Aviators Triple-A Field Staff
Fran Riordan - Manager
**2019 & 2023 PACIFIC COAST LEAGUE MANAGER OF THE YEAR**
BORN: 8/25/75 - Virginia Beach, VA
AVIATORS SUMMARY: Fran Riordan was named the 25th manager in the history of the Las Vegas franchise (1983 - present, 41 seasons) on November 8, 2018.
CAREER SUMMARY: He has recorded 24 seasons overall in professional baseball and has been a member of the Athletics organization for the past 10 seasons (2015-24). Riordan has compiled an overall managerial record over 23 seasons of 1,309-1,271 (.507). He ranks eighth among active leaders in minor league managerial wins (entering the 2025 season).
2024: The Aviators compiled an overall record of 74-75 (.497) and finished in fourth place in the PCL West Division.
2023: He was named Pacific Coast League Manager of the Year for the second time in four seasons and led Triple-A Las Vegas to an overall record of 75-74 (.503) and finished in third place in the PCL West Division.
2022: The Aviators compiled an overall record of 71-79 (.473) and finished in third place in the Pacific Coast League West Division.
2021: Riordan guided the Aviators to an overall record of 65-61 (.516) in Triple-A West (Western Division) and finished in third place.
2020: With the Minor League Baseball season canceled due to the COVID-19 pandemic, Riordan worked with the Athletics' 60-man player pool at the team's alternate training site located in San Jose, California.
2019: He was named Pacific Coast League Manager of the Year and led Triple-A Las Vegas to the second-best record in the 16-team PCL (83-57, .593) and a Pacific Southern Division Championship. Las Vegas returned to the playoffs for the first time since 2014 and lost to Sacramento, 3-games-to-2, in the conference championship series. The Aviators' record marked a single-season franchise record for winning percentage at .593 (140-game season).
2018: He made his Triple-A debut as manager with the Nashville Sounds of the Pacific Coast League and compiled an overall record of 72-68 (.514) and finished in second place in the American Southern Division behind the PCL and Triple-A National Champion, the Memphis Redbirds. Nashville compiled a PCL-best 15-game winning streak from July 29 - August 14.
2017: He compiled a record of 67-71 (.486) with Double-A Midland and his squad captured the Texas League Championship. The prior two seasons, he was the skipper of Single-A Beloit of the Midwest League (2015-16). Before joining the Athletics organization, Riordan spent four seasons as manager of the Florence Freedom of the Frontier League (2011-14). He led the team to two playoff berths and is the all-time Frontier League leader in wins with 625. He was a 2014 Frontier League Hall of Fame inductee. Prior to his time with Florence, he managed the Northern League's Lake County Fielders (2010) and Kalamazoo Kings for six seasons (2004-09), leading the Kings to the 2005 Frontier League title. He was named the 2008 Frontier League Manager of the Year. He also served as player-manager in the Frontier League from 2000-02, leading the Richmond Roosters to back-to-back-league championships in 2001 and 2002.
PROFESSIONAL PLAYING CAREER: The first baseman/outfielder played seven seasons of professional baseball in the Frontier League with Richmond (1997-98, 2001-02), Dubois County (1999-2000) and North Shore (2003). He appeared in 501 career games and batted .281 (525-for-1,869) with 95 doubles, 11 triples, 55 home runs and 349 RBI. He was a three-time All-Star (first base) from 2000-02 and hit a career-high .314 with Dubois County (2000) and Richmond (2002). He established career-highs in home runs (14) in 2001 and RBI (81) in 2002.
PERSONAL: Francis Peter Riordan (pronounced REAR-den) resides in Buffalo, New York. The Virginia Beach, Virginia, native attended Canisius High School in Buffalo and played college baseball at Allegheny College in Pennsylvania. Fran, 49, and his wife, Cassie, have three children: Brooke, Sadie and Trent.
Brian McArn - Hitting Coach
BORN: 9/19/68 - Davis, CA
CAREER SUMMARY: McArn begins his 27th season overall in the Athletics organization. He returns to Triple-A Las Vegas for his fifth season. He will serve as hitting coach for his fourth season with the Aviators and was the assistant hitting coach in 2021.
MINOR LEAGUE COACHING CAREER: He had three stints as hitting coach for Single-A Stockton of the California League for a total of seven seasons (2011-12, 2014-15, 2018-2020); Triple-A Las Vegas of the Pacific Coast League for four seasons (2021-24); Double-A Midland of the Texas League hitting coach for four seasons (2004, 2013, 2016-17); Triple-A Sacramento of the Pacific Coast League for six seasons (2005-10); the A's former Single-A affiliate in Modesto of the California League where he served as hitting coach for six seasons (1998-2003). Prior to joining the A's organization, McArn spent one season as the hitting coach for Single-A Vermont of the New York-Penn League. He has been a minor league coach for a total of 28 seasons (including 2020). He began his coaching career at American River Junior College in Sacramento, where he served as assistant coach.
PROFESSIONAL PLAYING CAREER: McArn was selected by the Athletics in the 26th round of June 1991 First-Year Player Draft. He spent two seasons in the A's organization before injuries ended his career in 1992.
PERSONAL: Brian D. McArn. He is a graduate of Davis High School (CA) and attended American River Junior College in Sacramento (1988-89) and University of Nebraska (1990-91). He makes his offseason home in Elk Grove, Calif., with his wife, Cancy, and four children: Brian, Bryson, Brevon and Braydon.
Paul Abbott - Pitching Coach
BORN: 9/15/67 - Van Nuys, CA
CAREER SUMMARY: Abbott enters his second season overall in the Athletics organization and his first season with Triple-A Las Vegas as pitching coach. In 2024, he served as pitching coach with Double-A Midland of the Texas League.
MINOR LEAGUE COACHING CAREER: He has 15 years of coaching experience between the Boston and Athletics organizations. He coached at several levels in the Red Sox organization. He was the pitching coach for three seasons for Triple-A Worcester of the International League (2021-23). Prior to that, he coached with the Short-Season Lowell Spinners for two seasons (2011-12), Single-A Greenville Drive for two seasons (2013-14), High-A Salem Red Sox for three seasons (2015-17), Double-A Portland Sea Dogs of the Eastern League for two season (2018-19), and Triple-A Pawtucket Red Sox of the International League in 2020. In 2024, he served as pitching coach with Double-A Midland of the Texas League.
PROFESSIONAL PLAYING CAREER: He was originally selected by Minnesota in the third round of June 1985 First Year Player Draft. He played in parts of 11 Major League seasons with Minnesota (1990-92), Cleveland (1993), Seattle (1998-2002), Kansas City (2003), Tampa Bay (2004) and Philadelphia (2004). He appeared in 162 career Major League games (started 112) and posted a 43-37 record with a 4.92 ERA. He allowed 682 hits and struck out 496 batters in 720.2 innings pitched. He was a member of the 1996 Triple-A Las Vegas Stars (San Diego Padres) of the PCL. He appeared in 28 games and posted a 4-2 record with seven saves and a 4.18 ERA. He allowed 27 hits and struck out 37 batters in 28.0 innings pitched.
PERSONAL: Paul David Abbott. He is a native of Van Nuys, Calif., and is a graduate of Sunny Hills High School (Fullerton, Calif.). Abbott's son, Trey, was drafted by the Athletics in the 36th round of June 2007 First-Year Player Draft. His son, Lance, played baseball at Sacramento State and in the Seattle organization in 2010.
Don Schulze - Pitching Coach
BORN: 9/27/62 - Roselle, Illinois
CAREER SUMMARY: Schulze enters his 20th season overall in the Athletics organization and his first season with Triple-A Las Vegas as pitching coach. In 2024, he served as pitching coach with Single-A (High-A) Lansing of the Midwest League.
MINOR LEAGUE COACHING CAREER: He has 19 years of coaching experience that began with the A’s rookie-level affiliate in 2006. Since then, he has served as the pitching coach with Single-A Kane County of the Midwest League for two seasons (2007-08), Single-A Stockton of the California League for two seasons (2009-10), Double-A Midland of the Texas League for five seasons (2011-14, 2017), Triple-A Nashville of the Pacific Coast League (2015) and Single-A Beloit of the Midwest League for four seasons (2016, 2018-20). Prior to joining Las Vegas, he served four seasons as pitching coach with Lansing (2021-24).
PROFESSIONAL PLAYING CAREER: He was originally selected by Chicago Cubs in the first round (11th overall pick) of the 1980 draft. He played in parts of six Major League seasons with Chicago Cubs (1983-84), Cleveland (194-86), New York Mets (1987), New York Yankees (1989) and San Diego (1989). He appeared in 76 career Major League games (started 59) and posted a 15-25 record with a 5.47 ERA. He allowed 422 hits and struck out 144 batters in 338.2 innings pitched. He also pitched three seasons for the Orix Blue Wave in Japan and concluded his playing career with Triple-A Rochester (Baltimore) in 1993.
PERSONAL: Donald Arthur Schulze. He graduated from Lake Park High School in Roselle, Illinois. He resides in Dixon, Ill., with his wife, Jeanne, and daughters, Sarah and Madeline.
Kevin Kouzmanoff - Assistant Hitting Coach
BORN: 7/25/81 - Newport Beach, CA
CAREER SUMMARY: Kouzmanoff enters his seventh season overall in the Athletics organization and his first season with Triple-A Las Vegas as assistant hitting coach. In 2024, he served as hitting coach with Single-A (High-A) Lansing of the Midwest League.
MINOR LEAGUE COACHING CAREER: Coaching debut as hitting coach with Short-Season, Single-A Vermont of the New-York Penn League in 2019, Double-A Midland of the Texas League in 2021, Single-A Stockton of the California League for two seasons (2022-23) and Lansing in 2024. He joined the A’s organization after spending the 2018 season as an assistant coach with Metropolitan State University of Denver.
PROFESSIONAL PLAYING CAREER: Kouzmanoff was selected by Cleveland in the sixth round of June 2003 First-Year Player Draft. He played in parts of seven Major League seasons with Cleveland (2006), San Diego (2007-09), Athletics (2010-11), Colorado (2011) and Texas (2014). He appeared in 685 career games and batted .257 (650-2,525) with 143 doubles, eight triples, 87 home runs and 371 RBI. He established career highs in home runs (23 in 2008) and RBI (88 in 2009).
PERSONAL: Kevin Kouzmanoff. He resides in Denver, Colorado and graduated from Evergreen High School in Colorado. He attended University of Arkansas-Little Rock (2002) and University of Nevada (2003).
Jake Routhier - Athletic Trainer
Routhier enters his sixth season overall in the Athletics organization and his second season as athletic trainer with Triple-A Las Vegas. He previously served as head athletic trainer with Double-A Midland of the Texas League in 2023.
He also served as head athletic trainer with Single-A Lansing of the Midwest League in 2022; Single-A Stockton of the California League in 2021 and in the Dominican Summer League in 2019.
Prior to joining the A’s, Routhier worked as an intern for the New York Yankees and the Arizona Diamondbacks. He is a graduate of the University of Connecticut.
Dave Comeau - Athletic Trainer
Comeau enters his third season overall in the Athletics organization and his third campaign as athletic trainer with Triple-A Las Vegas. Before joining the Athletics organization, he served as athletic trainer in the New York Yankees organization for rookie-level Florida Complex League Yankees in 2022. He spent the previous seven seasons in the Atlanta organization (2015-21). He served as athletic trainer for Florida Complex League Braves in 2021 and served as infection control prevention coordinator for the Braves’ alternate site in 2020. He served four seasons as athletic trainer for Atlanta’s Single-A affiliate (2016-19) and one season with the Braves rookie-level affiliate in 2015. He previously worked in the Boston organization in 2012 as an assistant athletic trainer for Single-A Salem.
He attended Endicott College in Beverly, Mass., where he received his B.S. in athletic training in 2006 and received his M.S. in injury prevention and performance enhancement from California University of Pennsylvania in 2015.
Steven Thayer - Sport Performance Coach
Thayer enters his fourth season overall in the Athletics organization and his second season with Triple-A Las Vegas as sport performance coach. He spent the 2023 campaign as sport performance coach with Single-A Lansing of the Midwest League. Prior to joining Lansing, he served as sport performance coach with Single-A Stockton of the California League in 2022.
Prior to joining the Athletics organization, he served as sports performance coach in the Dominican Summer League for the San Francisco Giants in 2021. Before his time in professional baseball, he oversaw strength and conditioning programs for multiple varsity sports at Mater Dei High School. Additionally, he spent time as an assistant strength coach for the Michigan State basketball and volleyball teams and as an intern with Cal football.
A native of San Ramon, Calif., he is a graduate of Cal Poly, San Luis Obispo, and has a master’s degree in kinesiology from Michigan State University. He holds nine certifications in the strength and conditioning field.