"I played at Texas A&I University, and I coached at Texas A&I, which is a Division II school," said Castillo, who's been coaching for three decades. "And, really, I never coached at a big school. I went from Division II to the NFL, kind of like [sixth-round offensive lineman] Ryan [Jensen, Colorado State-Pueblo]. We have something in common. I think throughout my years, the biggest thing that I enjoyed is coming from a Division II school is that at our place what we learned is that it didn't matter who you got.