A good college football coach will take a motivated 2-star recruit over a privileged and lazy 5-star recruit any day of the week, and that's why some of the best players of the BCS era have been 2- or 3-star recruits.
That's not to say that 4- and 5-star players aren't successful at the college level, because there are certainly many examples of that. That's also not to say that all highly ranked recruits are "privileged and lazy," because that's an unfair generalization as well.
There's just something about the grit and chip on the shoulder of a talented and underrated recruit that makes him a fan favorite and gives him the drive to succeed.
At the Signed, Sealed, Delivered blog, these players are known as "diamond in the rough" recruits.
Here's a look back at the 10 best from the BCS era.
Note: Star rankings courtesy of Rivals.com unless otherwise noted.