Career
He was originally drafted by the San Francisco 49ers in the second round of the 2004 NFL Draft. He played college football at Alabama. On February 29, 2008 he was the first player of the 2008 offseason to sign with another team as an unrestricted free agent.
He signed a five-year, $25 million contract with $9 million guaranteed with the Miami Dolphins.
He was traded to the Jaguars on May 24, 2010. On July 28, 2011, Smiley was released by the Jacksonville Jaguars.
Smiley signed with the Oakland Raiders on August 2. He announced his retirement on August 6.
On September 18, 2011, Smiley returned to Alabama as a coach.
Smiley has since decided against coaching. Smiley is now working for the Federal Bureau of Prisons.