Buller was the head football coach at Bethel College in Newton, Kansas for five seasons, from 1960 until 1964, compiling a record of 17–26–2.[2]
Friends
After Bethel, Buller became the head football coach at Friends University in Wichita, Kansas, serving from 1965 to 1968 season, during which time his program recorded a record of 19–15–2.[3]
Southwestern
Buller was the 19th head football coach at Southwestern College in Winfield, Kansas, serving for three seasons, from 1969 to 1971. His record at Southwestern was 15–11–1.[4][5]
Buller resigned as head coach after the death of his wife in 1971.[6]