13. Jammal Brown, OT, New Orleans Saints
After going to Oklahoma as a defensive lineman, Brown turned out to be a much better fit on the offensive side of the ball. As a senior, he won the Outland Trophy as the best lineman in the country and was a unanimous All-American while paving the way for Adrian Peterson.
The Saints made him the first lineman selected in the 2005 Draft and Brown excelled right away, making the Pro Bowl in two of his first four seasons. Alas, he was slowed by a torn ACL in 2009, keeping him from playing when the Saints won the Super Bowl that season. Brown was traded to Washington in 2010 and started 26 games the next two seasons before missing all of the 2012 campaign due to injury and never landing another NFL job after that.