Austin had a fine run with the Ravens as the team's secondary coach, which began in 2011. He helped tutor defensive backs Cary Williams, Jimmy Smith and Corey Graham, and saw improvements out of all three players. Even Chykie Brown has consistently gotten better each season, and Lardarius Webb has blossomed into one of the NFL's better cornerbacks.
It's a well-deserved promotion for Austin, who'd been long overdue for a shot at a higher coaching position.
For the Ravens, the attention will turn to replacing the position on staff. One option is Steve Spagnuolo, who's a senior defensive assistant on the Ravens at this time. He has a long history of being a defensive backs coach in college with UConn, Maine, Rutgers and Bowling Green. He also coached the Eagles' secondary from 2001-2003.
The Ravens like to keep a lot of their coaching hires in-house, meaning this move would appear like a no-brainer if Spagnuolo wants it.