While I agree that a single NFL team's play book is more diverse than a college team's play book, on the whole there is more diversity in the college game. Pro style of fences are fairly similar when compared to the vastly different concepts seen in the college like the pure passing of the air raid to the spread option.
Oregon ran the exact same play 3 straight times last night to score a TD before half. Oregon does stuff like that a lot, I would hardly call that diverse
Once you add in the route combinations, audibles, hot routes, line blocking schemes and everything, Oregons offense seems like Peewee football to an NFL QB