Duke's all-time record is also sub .500.
I'm sorry, Saban has taken historically good programs and won. Spurrier took two downtrodden programs and won.
History says, if you put both of them in Conn, Spurrier would turn them into a 10 win team. Saban has no track record of turning a perennial loser into a winner.
I'm sure other coaches have done the same but Spurrier jumps out at me.