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Meet the Clinicians

2026 GACFOC CLINICIANS
(tentative)

 

Special Guests

Perry Havener- Mr. Havener has been the Coordinator of Football Officials for the Southern Conference since April, 2020, and has been involved in officiating for more than 40 years.  He also serves as the Assistant Coordinator of Football Officials for the SEC, and most recently worked as a replay official in the Sun Belt.  Before working in replay, Mr. Havener was an on-field official in the Sun Belt for 9 seasons, and prior to that he was in the Mid-American Conference.  Mr. Havener founded the Gulf Atlantic Collegiate Officials Association in 1996 and has helped develop more than 100 officials who moved to Division I in the NCAA and then NFL.

 

Bill Carollo- Mr. Carollo has served as the Coordinator of Football Officials of the Collegiate Officiating Consortium since the 2009 season, which serves the Mid-American Conference, Big Ten Conference and the Missouri Valley Football Conference. Mr. Carollo officiated in the NFL from 1989 to 2008, breaking in as side judge before being promoted to referee in 1997. He was on the field as referee for Super Bowls XXX and XXXVII, as well as 8 Conference Championships. From 2000 to 2006, he was Executive Director of the NFL Referees Association.  Mr. Carollo currently serves as a member on the NCAA Football Rules Committee.

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Mark Butterworth- Mark is the current Vice President of Replay Training and Development for the NFL.  He has been involved in NFL Replay for 25 years, beginning as a communicator before eventually making his way through the Replay Assistant position to become a Replay Official.  He has worked three Wild Card games, one Divisional Playoff game, two Conference Championship games, as well as one Super Bowl (LVII) in 6 seasons of eligibility. 

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Tom Symonette- Former NFL official and current Coordinator of officials for the SIAC.

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Andre Lowe-  Mr. Lowe has 18 years of college football officiating experience and previously served as a NCAA Football official in the Southern Intercollegiate Athletic Conference (SIAC) and the MEAC.  In his 16 years as a crew chief, Mr. Lowe officiated the NCAA FCS Playoffs in 2005, 2014 and 2016.  In 2007, he served as a crew chief at the NCAA FCS National Championship.  Mr. Lowe earned his bachelor’s degree in Business Administration, with a minor in Management, from Morehouse College in 1983.

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Peter Vaas- Mr. Vaas has been involved with Replay since 2014 when he started as a communicator in the American.  In 2016 became a replay official and in 2020 moved to the ACC.   In 2020 he also became the Replay supervisor for the CIP.   In January of 2022 he worked the National Championship game in Indianapolis and since April of 2022 he has been the Replay supervisor for the SEC, Sunbelt and Southern Conferences.

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Jim Guinan- Mr. Guinan, an active member of the NFL officiating scouting department, will join us at this year's Camp. Mr. Guinan comes with 22 years of experience as a scout as well as 40 years experience as an official, to include as a Head Linesman in the Big East (now known as the AAC).

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Carl Paganelli- Carl started his officiating career in 1978 as a member of the Michigan High School Athletic Association.  He has worked college football in Division III, Division II, the Mid-American Conference and the Big Ten Conference.  Working his way to the NFL, he officiated three years in NFL Europe and in 1999, Carl was hired by the NFL.  Carl has worked numerous playoff assignments in the NFL including Five Championship Games.  His greatest accomplishments in officiating are his Four Super Bowls.  His most memorable Super Bowl was Super Bowl 41, which he officiated with his oldest brother Perry, in Miami, Florida.

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Bill Schuster- Bill is currently a Coordinator/ Coach for the NFL where his primary duties consist of working with the Umpires.  Bill Officiated in the NFL for 2 decades as an Umpire in which he officiated Super Bowl XLIX and 14 playoff games in his on-field career. From 2016 to 2022 Bill was the Coordinator of Football Officials for Division 3 conference in NY State.

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Mark Collins- Mr. Collins is currently a coach coordinator with the NFL officiating department. Mr. Collins comes with twenty years of coaching experience including twelve in the NFL. His coaching stops include East Tennessee State University, Elon University, Georgia Southern University, Louisiana-Monroe, the University of Georgia, the University of Michigan, the Atlanta Falcons, the New York Jets, and the Jacksonville Jaguars. He currently resides in Jacksonville, Florida.

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Doug Rosenbaum- Mr. Rosenbaum is currently an officiating coordinator coach with the NFL officiating department.

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Rich DeMayo- Rich is currently the Replay Coordinator for the Northeast
Conference. He also heads up the Observers staff and Recruitment/Training of new officials for the ECFOA.  Previously, Rich worked in Replay for the Coastal-Ivy-Patriot and MEAC Conferences.  He started his officiating career in Philadelphia, PA where he worked in area high school leagues before moving into the ECFOA.
He worked for 28 years in Division 2/3 and the Northeast Conference. He has officiated several playoff games which included the National Championship Stagg Bowl.

Directors

Scott Aronowitz- Big Ten Replay Official, NFL Instant Replay video operator, NFL playoffs 2018-19 season (Philadelphia @ Chicago, Wild Card), Mid American Conference (MAC) Championship Game 2023, Stagg Bowl 2023, the 2025 Sun Bowl, and Articles contributor, Referee Magazine

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Andrew McGrath- Big Ten Replay Official, NFL Instant Replay video operator, NFL playoffs 2018-19 season (Seattle @ Dallas, Wild Card), 2019-2020 season (Seattle @ Green Bay, Divisional Round), Military Bowl Game 2021, Mid American Conference (MAC) Championship Game 2022, XFL Replay 2023, Famous Toastery Bowl Game 2023, 2026 Duke's Mayo Bowl (2025 Season), UFL Replay 2026. 

Clinicians

Alex Amaya (ACC)- Alex began officiating youth and high school football in 2009 in Broward County, FL.  Alex officiated in the Sun Conference, MEAC, and the AAC.  He is currently a LJ in the ACC and most recently worked the Tennessee @ Ohio State First Round CFP Game and the Cotton Bowl in the 2024 NCAA Postseason.

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Tyrone Anderson (SEC)- Tyrone began officiating high school in 1994 for the Eastern Board of Officials, Washington, DC, and moved over to WDFOA in Maryland area.  His collegiate career began with the ECAC Southern Chapter in 2004, from there, he moved on to the Centennial Conference, the ECFOA and the MEAC before being selected for the ACC, and currently SEC.  Tyrone is currently in his 5th season as a Replay Communicator having completed two years as a RC with the ACC, and currently with the SEC.  Tyrone officiated as Replay Communicator in the 2025 SEC Championship as well as the 2024 Fiesta Bowl.    

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Keegan Ashbee (AAC)- Keegan began officiating at Georgia Southern University working for the Intramural department in 2011. Since then, he has worked high school in Georgia, Florida and Alabama, Sun Conference (NAIA), SIAC (Div II), CUSA and currently AAC. As a Line Judge in Conference USA and American Conference, he worked the Camellia Bowl (2021) and Quick Lane Bowl (2023). 

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Bryan Beckering (SEC)- Bryan began officiating high school football in 2008 around St. Louis, Missouri, moving up to NCAA D III football in 2011. He has worked at multiple levels while earning post season assignments to include the 2020 (played in May of 2021) NAIA National Championship. He was hired full time as a Communicator into the Ohio Valley Conference for the 2021 fall season. In 2022 he was hired into the Sun Belt as a communicator. Bryan worked both the 2022 New Mexico Bowl and the 2023 Military Bowl. 

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Grantis Bell (NFL)- Grantis began officiating in 2008 with the Broward County Officials Association. In 2010, he moved up and begin working in the West Virginia Intercollegiate Athletic Conference (WVIAC). From 2010 – 2012, he worked in the WVIAC while also picking up games in the Southland Conference, Sun Belt, American, and the SEC. In 2014, he was hired in the SEC, officiating six years in the SEC. He has worked the following post-season assignments: Russell Athletic Bowl (2014), Peach Bowl (2015), Orange Bowl (2016), Cotton Bowl (2017 and 2018), and the Fiesta Bowl (2019). In 2020, he was hired into the NFL and has completed his fifth season in the NFL.
 

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​​Tra Blake (NFL)-

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Frank Bullock- Frank began officiating college football in 1989 in the Old Dominion Athletic Conference while living in Tennessee. After moving to Ohio, he worked in the North Coast, Ohio Athletic, Heartland and MFOA Conference. In 2005, he started working in the Gateway Conference which is now the Missouri Valley Football Conference (MVFC) which is part of the COC. In addition to working game in the MVFC, he worked several games in the MAC and B1G Conferences. While on the field, he worked several FCS Championship Playoff games. In 2023, he transitioned to the Replay Booth in the COC. In 2025, he was the Replay Communicator for a first  ound game as well as a National Quarterfinal game. Frank is a semi- etired engineer and currently works/plays at Walt Disney World as Security Host.

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Dustin Carter (Big Ten)- Dustin is currently a Replay Official in the B1G Conference as part of the Collegiate Officiating Consortium (COC) and is entering into his 28th season.  He previously worked as both a Replay Communicator and a Replay Official in the Missouri Valley Conference and Mid-American Conference, where he worked multiple FCS playoff assignments.  Prior to getting involved in Replay, he worked on the field as both a Head Line Judge and a Referee.  He also umpired high school and college baseball for 23 seasons as a Crew Chief.  Dustin is a retired Chief of Police, and currently works as an Engineering Manager for State Farm Insurance based out of their Corporate Headquarters in Bloomington, IL.  

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Jay Earnhardt (SBC)- Jay began his football officiating career in the Mid-South Conference (NAIA) at the age of 50. Since, he has worked seasons in the Gulf South (DII), Southern (FCS), and Sun Belt Conferences (FBS). Within his 10-year career at Back Judge, he has had the privilege to work 8 post-season assignments, including the NAIA National Championship (2016), FCS National Championship (2022), and FCS National Semi-Final (2023). He most recently worked the 2024 Famous Idaho Potato Bowl. Jay is currently a Back Judge in the Sun Belt Conference (SEC supplemental).

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Ramon George (NFL)-​​

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Wally Hough (SEC)-

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Deon Lawrence (ACC)- Deon comes to us from the Miami area and has been involved in officiating for 28 years.  He began officiating in the Broward County, Florida area, worked up through the WCIAC, Sun Belt Conference, finally landing in the ACC.  He works as a Line Judge and most recently worked the 2024 College National Championship Game.

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Scott MacDonald (Big Ten)- Scott began his officiating career in 2004, starting with youth and high school football in the South Shore suburbs of Boston and Cape Cod. In 2008, he transitioned to college officiating, initially working in the ECAC Division III Conference before progressing to the Division II Northeast-10 Conference. He later officiated in the Colonial, Ivy, and Patriot Leagues (CIP) before joining the Mid-American Conference (MAC) in 2015. Scott, now in his 10th year in the MAC, serves as a deep wing official in the College Officiating Consortium (COC) based in the Midwest. Most recently, he officiated the 2024 MAC Championship Game and the 2023 Hawaii Bowl.  In 2025 Scott moved to the Big Ten as a deep wing official.

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Ryan McClellan (Big Ten)- Ryan began officiating high school  Football and Basketball back in 2001 in the Pittsburgh area.  He started college football in 2010 working Umpire for Milt Halstead and Gene Steratore. In 2014 got hired into the MVFC and worked FCS Playoffs. In 2017 got hired into the MAC and was assigned 5 postseason assignments including the MAC Championship in 2018.  Then in 2023 Ryan came into the B1G and is currently working Umpire.  He has worked the 2023 Duke’s Mayo Bowl, the 2024 Holiday Bowl, and the Duke's Mayo Bowl in 2026 (2025 Season).

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Allan Nicholson (SEC)- Allan began officiating in 2006 working youth football in Pop Warner.  He quickly progressed into the college ranks, beginning in the Sun Conference for Perry Havener, moving to the MEAC, before joining CFO West with the Mountain West Conference and Big 12.  Allan currently officiates in the SEC and has just completed his 9th season.

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Alonzo Ramsey (NFL)- Alonzo began officiating in 2009 in Baltimore, MD. Alonzo officiated in the ECAC, SIAC, MEAC, Pac-12, and was hired full time in the ACC in 2018. During that time, he officiated The 2019 Outback Bowl, The 2020 Army/Navy game, and the 2021 ACC Championship. In 2022, he was hired into the NFL. Alonzo is currently a Side Judge in the NFL and most recently officiated the Los Angeles Rams @ Philadelphia Eagles 2025 Divisional Playoff Game. 

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Troy Riley (ACC)- Troy began officiating youth and High School football in the Sunshine Football Officials Association (SFOA, Pinellas County, FL)  in 1995. He began his college career in the SIAC in 2003 and has officiated in the Gulf South, Pioneer League, MEAC, and Sun Belt conferences before joining the Atlantic Coast Conference (ACC) in 2013 as an Umpire where he currently officiates.  Troy has recently completed his 12th season in the ACC and has worked in many postseason assignments including the 2022 Liberty Bowl and the 2023 Independence Bowl. 

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Zach Roth (AAC)- Zach began officiating middle and high school football in Jacksonville in 2015, and got his introduction to college officiating at GACFOC in 2019. He began in the Mid-South Conference, now Sun Conference, in 2019. He then moved up to FCS in the Ohio Valley Conference/United Athletic Conference, where he worked in 2023 and 2024. He just finished his first season in the American, and has worked a high school state championship, several NAIA playoff games, and an FCS playoff game.

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David Siegle (Big Ten)- Dave began officiating college football in 2004 in the GLIAC D2 conference.  He worked the D2 National Championship game in 2013 as Referee.  He then worked in the Missouri Valley (FCS) conference and now in the MAC.  He recently worked the 2023 MAC Championship and 2024 New Orleans Bowl.  In 2025, Dave was promoted to the Big Ten after working as a Referee in the MAC.

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Jim Slayton (ACC)- Jim began officiating in 1998 for the East Coast Football Officials Association in Palm Beach county Florida.  He joined the Central Virginia Football Officials Association in 2002 and was accepted to work in the ODAC/USA South Division III conferences in 2003.  From 2007-2014 he called games in the CAA/Ivy/Patriot conferences, and was eventually hired into the ACC in 2015, where he continues to serve as a LOS official.  Jim worked the 2024 ACC Championship and 2025 Rose Bowl CFP Quarterfinal.

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Kevin Stine (NFL)- Kevin has been officiating football for 39 years. He spent the last 7 years in the NFL. He was a Replay Assistant from 2018 to 2019 and has been a Replay Official from 2020 to present. During his time in the NFL, he has worked the Pro Bowl and 4 playoff games. Kevin began his collegiate officiating career with the Gulf Atlantic Collegiate Officials in 2003. In 2004, he moved to Division 2 Gulf South Conference as a referee/crew chief where he worked for 7 years. From 2010-2017, Kevin worked in the Sun Belt Conference where he worked as referee/crew chief. During this time, Kevin worked the Little Ceasar’s Pizza Bowl, Boca Raton Bowl (twice) and Military Bowl (3 times). Kevin also worked 3 different indoor leagues from 2003-2010, including 2 years in Arena II Football League and 2 years in Arena Football League (all as referee/crew chief). Kevin also officiated 15 years of HS basketball as well as 5 years of JUCO and NAIA basketball.

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Jay Swanigan (AAC)-

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Joe Waesco (MEAC)- Joseph began officiating in 2012 for the Central Florida Officials Association and moved up to the Sun conference in 2013.  Since then he has worked at many different levels, to include the PSAC, NJAC, and MEAC.  Currently he works as a Center Judge in the MEAC and worked the MEAC/SWAC Challenge (2024), Aggie/Eagle Classic (2024),  and the FCS playoffs (2023).

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Jamie Williams (SEC)- Jamie began officiating in 2007 for the Bloomington Normal Football Association and moved up to the UMAC Div III conference in 2012.  Since then he has worked at many different levels, to include the MFOA, GAC, SWAC, Sunbelt, and most recently the SEC.  Currently he works as a Replay Communicator in the SEC and worked the DIRECTV Holiday Bowl Game (2024).

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Ken Williamson (SEC)- Ken begin officiating 41 years ago in the Mid-Florida Officials Association in the Gainesville/Ocala area, having spent 15 years at the high school level, 5 at the D-II NCAA level, 21 at D-I level, 17 of which at the FBS level.  Ken spent 5 years in the Gulf South, 4 years in the Sun Belt, and 17 years in the SEC.  He is a referee and most recently worked the SEC Championship Game in 2021 and was an alternate in the CFP Fiesta Bowl Semi-Final Game.

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Meet the clinician- click on their photo

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