Some of nation's top tacklers reside in the Big Ten and not just at the top football factories
Captain Kirk: Kirk Ferentz brought Iowa from 1-10 to a national power - The Daily Orange
2013 University of Iowa football media guide by Iowa Athletics - Issuu
The top 20 NFL earners of the Kirk Ferentz era
Leistikow: Ranking the top 20 NFL earners of the Kirk Ferentz era
Leistikow: Ranking the top 20 NFL earners of the Kirk Ferentz era
College Football 2017: Nick Saban and the Highest-Paid Coaches
Kirk Ferentz Contract, Salary, & Buyout Breakdown at Iowa
Iowa football: Kirk Ferentz is 17th highest paid head coach
The Ferentz five: Victories that made a difference
Iowa's Kirk Ferentz calls on NCAA to address gambling policy
Kirk Ferentz salary: Year-by-year compensation progression
Top 10 Big Ten Wide Receivers of the BCS Era
Picking the best players of the Ferentz era