'It's brutal to face:' How a high school football team built an unusual offensive system
New Texas education laws this year range from school safety to tutoring
Joe Kapp, Quarterback Who Led Vikings to Super Bowl IV, Dies at 85 - The New York Times
A Brief History of Football's Extra Point
When the RPO changed football: right before the Kick Six
It's time for the NFL to get funky with RPOs
The Sprint Out Run-Pass Option (RPO) Explained - Shakin The Southland
Introducing the Under-Center Zone Option RPO
Spread offense - Wikipedia
The RPO was born in high school and took over college. Now it's the NFL's favorite play. - The Washington Post
Understanding the RPO in Football (Run-Pass Option)
Run-pass option - Wikipedia
The RPO was born in high school and took over college. Now it's the NFL's favorite play. - The Washington Post
Film Study: The Continuing Evolution of Run/Pass Options