Brown arrives at U of L after a year working with the defensive backs at Alabama. The Crimson Tide finished the 2013 season ranked in the top 15 in both scoring defense and passing yards allowed.
An experienced coach who has spent 15 years working in the NFL, Brown has previously served as defensive coordinator at both Arizona and Colorado.
"I'm thrilled to be able to hire Greg Brown to complete our staff," Petrino said. "Greg has coached some outstanding players at the NFL level and has served as a defensive coordinator in college. He brings a great deal of experience and knowledge to the defensive staff and is also an outstanding recruiter. To be able to complete our staff with the caliber of coach like Greg Brown says a lot about the University of Louisville."
During his career, Brown has worked with six NFL Draft selections, five all-conference performers and 15 NFL All-Pro choices. Brown has developed some of the nation's best on the defensive side of the ball, including NFL All-Pro Rodney Harrison, and a pair of Jim Thorpe Award winners, which recognizes the best defensive back in the nation.
During his tenure in the NFL, he concluded his four-year stint with the New Orleans by leading the team to the No. 3 ranking in pass defense in 2005, holding opponents to a just 178 yards per game.