Lions direct attention to Caldwell after losing out on Whisenhunt
The buzz around Caldwell stems from having taken over for Cam Cameron at offensive coordinator during the 2012 season and helping turn around the Ravens' offense on their way to a Super Bowl victory. In 2013, however, the Ravens' offense plummeted to 29th in the NFL, so I personally find it a bit surprising that NFL teams seem so enamored with Caldwell.
The soon-to-be 59-year-old Caldwell had a three-year head coaching stint with the Indianapolis Colts after Tony Dungy retired. He led them to the Super Bowl (which they lost) in his first year as head coach in 2009, then posted a record of 10-6 the following season, which was the Colts' worst mark since 2002. In 2011, quarterback Peyton Manning was sidelined for the year with a neck injury, and Caldwell's squad went 2-14, leading to his termination.
Caldwell has certainly had his ups and downs while working high-profile positions, but reports suggest that both Dungy and Manning gave Caldwell great recommendations when asked about him by the Lions. The other jobs that Caldwell interviewed for were with the Tennessee Titans and Washington Redskins, both of whom have hired head coaches, so the Lions may be Caldwell's last shot at a head coaching gig. Caldwell looks like the frontrunner for the Lions job at this point.