Collier came to UNLV after serving 11 years as the first and only head women's basketball coach at Menlo College in Atherton, Calif. The two-time Cal Pac Conference Coach of the Year led Menlo to an average of 20 wins over the past four seasons, including the 2006-07 season when the Oaks finished at 25-3 (16-0 in conference play). Collier had a career record of 172-96 at the school after starting the program from scratch in 1997. She led the Oaks to three NAIA tournament appearances, including a Sweet 16 finish in 2006. The team also won three conference tournament championships, two regular-season championships, and in 2006-07 it finished the year ranked No. 7 in the NAIA national top-25, the highest in program history. The Oaks were also ranked No. 2 nationally in team defense during the 2006-07 season.
Collier also had been Menlo's Director of Athletics since July of 2003, the first woman to hold the position in the school's 75-year history, and saw the Oaks win the Cal Pac Conference All Sports Trophy in 2006-07 (the school would win in the 2007-08 season as well). She was selected as president of the NAIA Women's Basketball Coaches Association in October 2007.
Prior to Menlo, Collier spent one season at Dominican University (Calif.) as assistant coach and assistant athletic director during the 1996-97 season. She played one season for UC Davis (1989-90), and received her bachelor of arts degree in psychology from the school in 1993. Collier also earned a master of arts degree in sports management from the University of San Francisco in 1997, and completed a fellowship at Oxford University in the spring of 2002.