In his seventh season , Duffy reportedly served as a player and coach for the 1891 team .
In Duffy 's first six years as a varsity football player at Michigan , the team compiled an overall record of 17 wins and 4 losses .
In Duffy 's seventh season , Duffy reportedly served as a player and coach for the 1891 team .
In Duffy 's first six years as a varsity football player at Michigan , the team compiled an overall record of 17 wins and 4 losses .