The Cowboys are turning to outside help to try and fix their leaky defense, hiring a longtime NFL defensive mind as a senior assistant.

Cowboys make defensive coaching hire What we know: During his Monday press conference, Dallas Cowboys head coach Brian Schottenheimer announced the team was hiring Mike Pettine as a senior defensive assistant.

"He's gonna be here in a role to support everything that C.P. (defensive coordinator Christian Parker) is leading and guiding," Schottenheimer said.