Finglass was a member of the Dallas Cowboys Cheerleaders from 1984 to 1989, where she was the first cheerleader to be invited back without having to go through the customary audition process.

After leaving the squad in 1989, Finglass was hired by Jerry Jones as an assistant director to the DCC from 1989 to 1990. She then took a position in the sales and promotions department for the Dallas Cowboys and in 1991 was promoted to director of the Cheerleaders. As well as director, she also acts as business manager. She has expanded the organization, receiving many corporate sponsors and creating a business out of the DCC brand. She also has created and refined different competitions hosted by the Dallas Cowboys Cheerleaders, including the DCC Dance & Drill Team Competitions, Camp DCC, Cheers for Years, and Cheers for Fitness. She currently serves as an executive producer for CMT's hit series Dallas Cowboys Cheerleaders: Making the Team.