It's just not as easy as it seems.
http://www.nfl.com/news/story/0ap300...-thrive-in-nfl"Nobody can really figure out [if they can thrive in an NFL offense] until you get your hands on them, 'cause they're not being trained to do that," Roman told NFL.com's Mike Silver, who wrote an extensive feature on the challenges of the position. "They're being trained to win the next game in college so the college coach can keep his job."