Why are QBs from Texas so good?

Max Olson of HornsNation fired up a great story this week about the prolific rate in which Texas is producing quarterbacks. Nine NFL starters and 97 FBS quarterbacks hail from the state, which used to be known for its ability to churn out running backs.

How'd that happen?

The coaches cranking out these signal-callers all know how we got here: They witnessed -- and embraced -- the two passing phenomena that have hit the state.

The first was 7-on-7 football, starting in 1996. The rapid rise of the pass-heavy summer sport made football a 12-month commitment for high school players. It's an invaluable proving ground for quarterbacks, whose arm talent and decision-making is put to the test on every single down.

"I've watched the whole thing change over time," Texas A&M coach Kevin Sumlin told ESPN.com in July. "The ability for the quarterback to be coached and work year-round, that's so important. And for the receivers to play in a system like that, it changes everything."

Interesting stuff from Olson. Go check out the full story.