Romeo Crennel is getting a three-year contract to become the Texans defensive coordinator, his agent Joe Linta confirmed today.

Crennel has completed his coaching assignment at the East-West Shrine game and is now free to sign with the Texans.

Crennel, 66, will replace Wade Phillips.

Crennel, new Texans coach Bill O’Brien and the new Texans coaching staff will spend the week scouting at the Senior Bowl in Alabama.

Crennel, recognized as one of the best defensive coordinators in NFL history, most recently was a head coach with the Kansas City Chiefs.

He was fired after a 2-14 season in 2012 and sat out last year.