Nick Saban has now been retired from coaching the Alabama Crimson Tide for just over a year. In that short time, the sport has evolved dramatically. In fact, college football was already undergoing significant changes just before he decided to hang up his whistle.

Upon retiring, Saban walked away with 11 SEC Championships, having over 160 players drafted to the NFL and won seven titles. His career is now the pinnacle of the sport, and people will chase after his records like he chased after Bear Bryant.

It's hard to imagine that one of the greatest coaches in college football history has many regrets. But according to Nick Saban, there's one big mistake in his career that still bothers him. During a recent appearance on "The Pivot" with former player Ryan Clark,

Saban hopped on The Pivot to discuss his "biggest mistake" as a coach, dove into the significance of the move.

Legendary coach Nick Saban reflects on his decision to leave LSU for the NFL, calling it the biggest mistake of his career.