A good comparison could be Matt Mauck. The LSU QB from the National Champion 2003 team. Graduated HS in 1997, took a few years off because he played minor league baseball. Came back to school and few years later he won a National title(2003). But, it did take him 3 football seasons to win the national title.
Then, think Leak/Tebow. Leak the senior(paulus), with a QB everyone would rather see, Tebow(forcier).