here it is to remind you:
"how many quarterbacks has Saban coached that went on to play in the NFL?"
So I answered it for you. The number is actually 5 have been in the NFL, but I could only think of 3. You made no mention of who was recruited by whom or how long they played.
Matt Flynn, by the way, played 2 years under Saban. Flynn's first TD pass in college was in mop up duty over- you guessed it- Miss State in 2004.
So to summarize, Saban has had 5 NFL QB's that he has coached. He only stays at schools for 5 years, so its going to be hard for him to coach one through his whole career