 <unk> 's college career was interrupted by World War II service in the United States Navy , but after missing the 1945 season , he returned to play for the Wolverines from 1946 to 1948 . <unk> played for the Wolverines in consecutive undefeated National Championship seasons in 1947 and 1948 . He started nine games for the 1947 team . The 1947 team referred to as " Michigan 's Mad <unk> " is considered to be the greatest University of Michigan football team of all time . <unk> and teammate Len Ford had the reputation as the team practical <unk> . During the 1947 game against Wisconsin , <unk> started calling signals for the <unk> . Wisconsin 's offense protested to officials , who " <unk> the Wolverines secondary but never caught their man . " <unk> continued to scramble <unk> signals , as <unk> 's teammates laughed at his scheme . In the January 1 , 1948 Rose Bowl that season , Michigan rolled to a 49 – 0 victory over USC , and they <unk> the Trojans 491 yards to 133 . <unk> caught a 29 @-@ yard pass for the game 's final score . 
