As a senior at Notre Dame, he was a lineman on the 1924 national title team — the first Irish team to win a championship, and had a pivotal role in Notre Dame's first Rose Bowl trip in January 1925.

Bach spent the 1950 and 1951 seasons as head coach of the St. Bonaventure Brown Indians football team,[1] where Silas Rooney, Steelers owner Art Rooney's brother, was serving as athletic director; St. Bonaventure University ceased sponsoring football after the 1951 season.

Following three home defeats to begin the pre-season in 1954, Bach resigned during training camp in late August.

[6] Bach later worked as a state labor mediator and continued as a scout for the Steelers and was an active member of its alumni association.

Minutes after the conclusion of a banquet luncheon in his honor in October 1966, Bach collapsed and died.