Saban has built a recruiting, championship contending regime and 'system' in college football. That can't be denied. However, not all of his players translate as good pros. Systems are different and Saban isn't coaching them in the NFL. (That could be an issue for some of them not living up to their draft status)
Saban has sent over 50 players to the NFL and More of the Alabama 'busts' have been on the defensive side of the ball. But they have more players in the NFL if I'm not mistaken and every college will have misses. If there is a good playmaker recommended by Saban though...I'm in. (And I can still not like how he did the Dolphins but eh...).