When he took over as head coach at Michigan in 1938 , Crisler introduced the distinctive winged football helmet which has since become one of the symbols of Michigan Wolverines athletics programs .
Crisler served as Michigan 's head football coach from 1938 to 1947 .
When Crisler took over as head coach at Michigan in 1938 , Crisler introduced the distinctive winged football helmet which has since become one of the symbols of Michigan Wolverines athletics programs .
Crisler served as Michigan 's head football coach from 1938 to 1947 .