By Mike Fisher | @fishsports

IRVING (105.3 THE FAN) — Monte Kiffin, one of the icons of NFL defensive coaching, has always fought against the idea of retirement, even as he approaches 75.

READ MORE: Basketball Hall Of Famer's Shop With A Cop Program Helps Build Trust Between Police And Kids

“I don’t golf, I don’t fish, I don’t bowl,” he often jokes. “It’s just family and football.”

And now it’s about to no longer be football with the Dallas Cowboys.

READ MORE: Hundreds Come Out To Honor Fallen Mesquite Officer In Prayer Vigil

Kiffin worked in 2012 and 2013 as the Dallas defensive coordinator before being demoted this season to what amounted to a “special-assistant” role under long-time friend and former pupil Rod Marinelli.

Marinelli’s contract was renewed last month. Inside of Valley Ranch, word is getting around that Kiffin won’t be renewed, and that’s not a shock.

But it serves as a shock to the system of Kiffin, who after almost 50 years in coaching, prefers to avoid retirement … Maybe so he can avoid golf, fishing and bowling.

MORE NEWS: Oklahoma Hires Clemson's Venables As Coach

(©2015 CBS Local Media, a division of CBS Radio Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)