The Purdy's are interviewed for part of this article, touching on the growth of QB prospects in the Valley of the Sun. pretty cool read! (It is behind a pay-wall)
https://theathletic.com/1393644/201...mer-jack-miller-spencer-rattler-tyler-shough/
https://theathletic.com/1393644/201...mer-jack-miller-spencer-rattler-tyler-shough/