Complex sentence: Harrell started in every game of the 2006 season and, with his 4,555 passing yards, became the third-most sophomore passer in NCAA Division I FBS history and first of the Big 12.
Split into simpler sentences: Harrell started in every game of the 2006 season. He threw for 4,555 passing yards, the third-most by a sophomore in NCAA Division I FBS history and the most ever thrown by a sophomore in the history of the Big 12.