Here Is The Proof He Can PlayHere is a good article about why Tim Tebow can play with the big boys.

Joe Tiller never coached a day in the NFL, but he knows a little something about NFL quarterbacks. Next Sunday, two of his former Purdue quarterbacks -- Saints star Drew Brees and Colts backup Curtis Painter -- will participate in Super Bowl XLIV. A third, Kyle Orton, has started three seasons for the Bears and Broncos.
But here's the relevant part for NFL draftniks: All three played in a shotgun-passing offense.
Tiller, 67, retired last season after a 12-year stint at Purdue in which he went 87-62 and earned bowl berths in all but two seasons. A bout of mediocrity toward the end of his tenure with the Boilermakers (who finished seventh or lower in the Big Ten three of his last four seasons) may have tarnished Tiller's legacy, but it's hard to argue with his record of producing NFL quarterbacks -- particularly considering he employed an offense many pro followers consider gimmicky.
Here is more of the article below.
http://bleacherreport.com/tb/b2HLN