Steve Clarkson is an American football coach. He is considered one of the premier quarterback coaches. Clarkson has tutored Ben Roethlisberger, Matt Leinart, J. P. Losman, Gino Torretta, Matt Barkley, and Jimmy Clausen, among others. Recently, Clarkson's newest protégé, a 13-year old from Delaware named David Sills verbally committed to USC (he cannot be offered a scholarship legally, for it will violate NCAA regulations).