Gilbert spent five seasons with the Jaguars from 2003-07 and played in 56 games. He led the Jaguars with a career-high 16 special teams tackles in 2006. He spent the past two seasons in Atlanta, where he saw action primarily on special teams.
Griffin has played in 46 games with Kansas City and Cleveland, but hasn't played since 2008. Douzable has spent time with Minnesota, the New York Giants, Detroit and St. Louis.