"They were unlucky last year. I don't just mean "unlucky" in the obvious, "lose two All-Americans/soon-to-be first-round draft picks before halftime of the first game" way. The Sooners were mathematcically unlucky: Last month, a math-oriented Michigan fan at MGoBlog ran the numbers on fumbles, blocked kicks and other outlying harbingers of (mis)fortune and found Oklahoma was easily the unluckiest team in the country in 2009 – to the extent that, if it played the same schedule over again, even without the injuries that shelved stars Sam Bradford and Jermaine Gresham for the season, the Sooners could expect to improve their 8-5 record by three full games. Besides losing Bradford and Gresham, the offensive line was constantly shuffled and reshuffled among four new starters, including a converted tight end who started the season opener at center just days after moving to the position out of desperation." Other reasons: * Close losses and big wins * Starting QB comes back * Excellent coaching.