Neumeier was inventor of American football's spread offense (1969-70) as the head coach at Granada Hills High School from 1960 to 1978 and won the Los Angeles City championship in 1970.
Dennis Erickson, who first met Neumeier through Jack Elway, while serving as Jack Elway's offensive coordinator at San Jose State, learned about the spread offense directly from Neumeier.
Erickson, Joe Tiller and other coaches subsequently coached national championship teams and Heisman Trophy winners using Neumeier's offense, which is now utilized in some form by almost every football team at every level of play, NFL, college, high school and youth football.
He continued to mentor other coaches utilizing variations of his spread offense until Neumeier's death in 2004.
One More Season: The Birth of Football's Spread Offense by Lorin Fife (c) 2020, provides historical details about Jack Neumeier's life and career, focusing on the history of his invention of the spread offense in 1970 while coaching at Granada Hills High School in Los Angeles, California.