He was also the head coach of the Titans for three years from 2011-13, producing a 22-26 record.
Despite his disappointment as a head coach, he has been among the best position coaches in the NFL during his time on the sidelines.
The Steelers offensive line helped pave the way for Le'Veon Bell for years before the running back sat out this season, while James Conner stepped in and earned a Pro Bowl selection in his first year as a starter. Jaylen Samuels also had big games thanks to the open lanes provided for him.
Additionally, Pittsburgh had the fourth fewest sacks in the NFL with just 24 this season. It's the third-straight season the squad finished in the top five in this category, helping quarterback Ben Roethlisberger remain healthy.
He has also coached seven different offensive linemen to the Pro Bowl in his career.
This makes the latest addition a significant one for Denver:
Nicki Jhabvala @NickiJhabvala
Broncos reached an agreement with Mike Munchak to be their offensive line coach, source confirmed. (1st by @MikeKlis) Huge pickup for the Broncos. Not only is Munchak among the best at what he does, but it means Denver managed to get BOTH of its head-coaching finalists on staff.
While the Broncos line improved from 2017, Munchak could potentially solidify the unit and turn around an offense that finished 24th in the NFL in points scored.
On the other hand, the Steelers lose a key part of their success from the past few seasons:
If Ramon Foster leaves in free agency, Pittsburgh could have some serious question marks up front.