He topped those numbers as a senior, throwing for 5,097 yards and 48 touchdowns. Null became the first quarterback in West Texas A&M history to throw for more than 9,000 yards in his career, despite starting for just two seasons.
Null ended his Division II by earning offensive MVP honors in the Valero Cactus Bowl, a Division II all-star game.
While at West Texas A&M, Null was coached by former NFL first-round pick Ryan Leaf, who served as the school's quarterbacks coach from 2006 until resigning in November of 2008.
Null began his rookie season as the Rams third-string quarterback, but was forced into action due to injuries to Marc Bulger and Kyle Boller. Null made his first career start in Week 14 against the Titans, going 27-of-43 for 157 yards and a touchdown with five interceptions.