As you can imagine, the list is basically Tech and UH guys
This rundown is a credit to offensive innovators as much as anything else. The list contains players from two schools, Texas Tech and Houston. Both can lay a pretty confident claim to Quarterback U. Tech through the innovation of Mike Leach and later Kliff Kingsbury. For Houston, they credit a branch of the Leach tree, Kevin Sumlin as well as one of the original offensive innovators to bring run and shoot principles to the mainstream, John Jenkins. All told ten of the top twenty single season passing marks in NCAA history come from Tech and Houston. By the way, if you look at the list, two other quarterbacks in the top 20 have significant Texas ties. Ty Detmer played at San Antonio Southwest High School and Derek Carr played three seasons at Clements High School in Fort Bend.