there's a ton.
just think of some of the UM guys ....
Hubbard Alexander (WR coach) was an offensive lineman
Don Soldinger (RB Coach) was a D-end
Dave Wannstedt (LBs/DC) was an OL
Jeff Stoutland (OL) was a LB
Jedd Fisch (QB/OC) was a tennis player in high school
the list goes on ...