Few college teams do when compared to the level needed to play in the NFL. Most fanbases tend to overestimate "their" guys. Reality is that, on average, about 3-4 players make it a year from the top programs. That's it. Some years are better but some are down. And that 3-4 goes from the superstars down to the Joe Iorio's of the world (he only got one regular season game--and did not play).