Brey returned to his former high school, becoming an assistant coach under Morgan Wootten. In 1987, he was hired by Duke University to assist Mike Krzyzewski, and in 1995 he took over his first head coaching job at the University of Delaware.
Brey's path led him back to his former high school, where he became an assistant coach under Morgan Wootten. He then joined forces with Mike Krzyzewski at Duke University in 1987, before eventually taking on his first head coaching role at the University of Delaware in 1995.