The best Big 12 recruiting classes of the BCS era featured multiple appearances by—surprise, surprise—Oklahoma and Texas.
The list of biggest recruiting overachievers and underachievers, however, is a bit more diverse. Rarely did a Big 12 team outside the Longhorns or Sooners land a top-10 recruiting class.
Sometimes the classes that looked great on paper failed to live up to expectations. Those would qualify as the biggest underachieving classes. Conversely, the recruiting classes that looked like nothing special yet went on to do great things are considered overachieving classes.
Which classes did better than expected, and which ones did worse? They're listed in the following slides.
All recruiting rankings courtesy of Rivals.com unless noted otherwise.