Training Resources – Master Trainers

TEAM Master Trainers

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  • Chloe Janfaza

    Chloe Janfaza

    Chloe Janfaza is the Director of Stadium Development and Operations for the Las Vegas Raiders. Her event management experience extends through three major sports leagues, NFL, MLB, and, NBA. As a member of the Stadium Operations department, she oversees guest services and training committees for the club and works with stadium partners to uphold best practices during all events at Allegiant Stadium. Chloe became a TEAM trainer in 2016 and a TEAM Master trainer in 2020. She has certified more than 120 employees.


  • Jill Kiefer

    Jill Kiefer

    Jill joined the TEAM Coalition as executive director in the spring of 2002. She has served as a master trainer since 2004. In that time she has led 65 Instructor Development Program (IDP) workshops and certified over 2,000 trainers. She also conducts TEAM training at the employee level for various organizations and facilities from professional sports to college venues. Jill has certified more than 5,400 employees and non-profit volunteers.


  • Vicki Malko

    Vicki Malko

    Vicki Malko is the former Assistant Director of Special Events at MetLife Stadium, where she ensured that fans coming to see the Giants, the Jets or Super Bowl XLVIII all had a positive experience. Vicki has certified more than 3,000 people since becoming a trainer in January 2012. She became a Master Trainer in April 2014.



  • Randy Mayne

    Randy Mayne

    Randy Mayne is the Assistant General Manager for Centennial Management at the Maverik Center in West Valley City, UT, whose primary tenant is the Utah Grizzlies of the American Hockey League. Randy is responsible for all “front of house” staff for all events including concerts, sporting events, corporate functions, and even some of the 2002 Winter Olympic events. Randy became a trainer in 2002 and a Master Trainer in 2003. Randy has certified over 750 people.


  • Greg Overstreet

    Greg Overstreet

    Greg Overstreet is the Director of Security for Mercedes-Benz Stadium in Atlanta. Greg is a 20-year veteran in public law enforcement, private security and crowd management, including 3 Super Bowls, 3 NCAA Final Fours and the 1996 Olympic Games. Greg has trained more than 390 security personnel in the TEAM training program since becoming a TEAM Trainer in 2008. Greg first became a TEAM Master Trainer in 2014.


  • Aaron Schmitt

    Aaron Schmitt

    Aaron Schmitt is the Regional Director Southeast for S.A.F.E. Management, based out of the Mercedes-Benz Stadium in Atlanta. Aaron has certified over 7,500 event staff and continually promotes responsible alcohol management practices during events. Aaron has been certified as a TEAM trainer since 2006 and became a TEAM Master Trainer in April of 2007.


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