f Ohio State linebackers coach Al Washington held the same position at Michigan in 2018.
f Ohio State secondary coach Matt Barnes was a defensive analyst at Michigan in 2015.
f Ohio State QC coach Joe Bolden was a four-year letterman and a two-year starting LB for Michigan from 2012-15.
f Michigan OL coach Ed Warinner was Ohio State’s OC/OL coach from 2012-16.
f According to the Bentley Historical Library, the archives of the University of Michigan and the Michigan Athletic Department, Washington and Warinner are among seven individuals to have coached in a full-time capacity at both Ohio State and Michigan.
f Most notable is Bo Schembechler, assistant at Ohio State from 1958-63 and Michigan head coach from 1969-89.
f The other four: Greg Mattison; Chuck Stobart; George Little; and Steve Farrell.