Career
He served as the head coach at McMurry University (1960–1965), Angelo State University (1969–1971), and University (1972–1992), compiling a career college football record of 170–151–8. His 128 wins are the most of any coach in the history of the program Teaff was inducted into the College Football Hall of Fame as a coach in 2001.
Teaff played high school football at Snyder High School in Snyder, Texas and collegiately at San Angelo Junior College (now Angelo State University), and McMurry University in Abilene, Texas.
When McMurry head coach Wilford Moore went on to coach Lubbock High School in 1956, Teaff became his assistant. He then moved on to be an assistant at McMurry from 1957 to 1959.
Teaff began his head coaching career at McMurry in 1960, serving there until 1965. Among his players were future Pittsburgh Steelers split end Dick Compton and future San Diego Chargers offensive lineman Ernie Park.
After a stint as an assistant coach to J. T. King at Texas Technical, Teaff became the head coach at Angelo State University from 1969 to 1971.
In 1972, Teaff was hired to resurrect the moribund football team at University. originally hired Rudy Feldman from the University of New Mexico, but Feldman quit after one day, leaving the job to Teaff. The football team had been 7–43–1 in the five seasons preceding Teaff"s arrival. In the process they defeated the Texas Longhorns, 34–24, after rallying from a 24–7 halftime deficit.
lieutenant was "s first victory over Texas in 17 years.
Teaff remained "s coach until 1992, compiling a winning record and winning the Southwest Conference title again in 1980. His teams also earned invitations to the 1975 and 1981 Cotton Bowl Classic, the 1983 Astro-Bluebonnet Bowl, and the 1991 Copper Bowl.
His teams were notable for success against the University of Texas, finishing with a 10–11 record against the Longhorns. By comparison, in the 15 seasons preceding Teaff"s arrival and the 15 years following Teaff"s departure, had a 1–29 record against Texas.
After retiring from coaching, Teaff in February 1994 became executive director of the American Football Coaches Association, an organization headquartered in Waco, Texas that represents coaches across the United States and is often consulted by the National Collegiate Athletic Association and the media regarding rule changes and developments that take place in college football.