An in-depth look at the contracts of Big 12 head coaches revealed lengthy documents, in some cases complex, detailing everything from where the coach will have a free golf membership to how many free tickets he gets to a football game. On top of that, lump sum payments and staying bonuses are increasing in popularity. Oklahoma's Bob Stoops, Texas' Mack Brown and Texas Tech's Mike Leach are among the many coaches in college football who are due to receive staying bonuses in the next couple of years. This past week, Kansas coach Mark Mangino had a $1.5 million retention bonus added to his contract if he stays at KU through 2012. Following this season, Stoops will receive a $3 million bonus for having coached the Sooners for 10 years. That's on top of the already $2.77 million he'll receive in guaranteed income, not counting any performance-based bonuses he could earn. Not only does Brown earn a bonus of $300,000 each year, he will make an additional $3 million if he coaches through the 2010 season. Because of those staying bonuses, Stoops, Brown, and now Mangino, are among the highest paid coaches in the nation. Other coaches in the league can also hit the jackpot through other means, especially by posting a successful season. Oklahoma State coach Mike Gundy, whose contract exceeds 30 pages, can make an extra $5,000 by defeating OU in front of a sellout crowd. He can also earn an additional $3,000 if the Pokes knock off Texas A&M this season. Every coach in the league has huge payouts for winning the Big 12, advancing to a BCS bowl and winning the national championship. Coaches are also rewarded for the academic performances of their players. First-year head coach Bo Pelini can make $125,000 if the Cornhusker football team's graduation rate is equal to or greater than that of the Nebraska student body.