Colorado has promoted one of its quality control coaches to offensive line coach.

William Vlachos, a 2-time national champion at Alabama, has been named OL coach for the Buffaloes. He replaces Mitch Rodrigue, who was fired by Karl Dorrell on Sunday with the Buffaloes ranking last in FBS in total offense and among the worst in the country in sacks yielded.

Vlachos played for Alabama from 2007-2011, winning national championships after the 2009 and 2011 seasons. He was part of an offensive line that blocked for Mark Ingram and later Trent Richardson.

Following his college career, Vlachos inked a undrafted free agent deal with the Tennessee Titans but was cut prior to the 2012 NFL season. He then joined Nick Saban’s staff as a graduate assistant in 2013 and later became an analyst. After a stint on the Buffalo Bills’ staff in 2018, he was hired at Colorado ahead of the 2020 season as a quality control coach.

The Buffaloes are 2-5, 1-3 in the Pac-12. They visit No. 7 Oregon on Saturday.