Michigan 2021 QB commit J.J. McCarthy (La Grange Park, Ill.) does drills, including one borrowed from a play made by Aaron Rodgers, May 18, 2019. Orion Sang, Detroit Free Press
Pat Harlow has coached plenty of talented offensive linemen.
He used to be one himself, too.
Harlow was a star lineman at USC before the New England Patriots drafted him with the No. 11 overall pick of the 1991 NFL draft. He played eight years with the Patriots and Oakland Raiders.
After his playing career, he transitioned into coaching. He's currently the head coach at JSerra Catholic High School in San Juan Capistrano, California.