I give Saban all the praise in the world for what he has done at Alabama, but he did not walk into a black hole. Alabama was in a minor historical blip not totally evaporated like Minnesota, Army and Pitt.
My point is that Alabama was Elite for a long time before Nick Saban showed up and not too far in the distant either. Obviously, they were down a bit before he took over and maximized their potential, but they were only 2 years removed from a Cotton Bowl 10-win season (2005), 8 years from an SEC Championship (1999) and 15 years from a National Championship (1992) which were droughts by their standards, but minor by most.
For example, Oklahoma is in a 22 year National Championship drought, and Notre Dame is in a 34 year National Championship drought. Maybe it's because I am older, but I look at the time between Stallings and Saban (1997-2006) as just a minor blip, and they still had three 10-win seasons (1999, 2002 and 2005), won an SEC Championship (1999) and won a Cotton Bowl (2005).
They were NOT Elite during that ten year stretch, but they never strayed too far from it for too long. Just up and down. For example, they haven't gone more than 3 years without a 10-win season since 1981-5. From 1986-2006, Alabama won 10 or more in 1986, 1989, 1991, 1992, 1994, 1996, 1999, 2002 and 2005. That's more 10 win seasons between Bryant (retired in 1982) and Saban (hired in 2007) than most schools have in their history.
I'll just pull Michigan State out of the hat. I bet they don't have nine or more 10-win seasons in their entire history. I may be wrong, but I bet I am not far off of that mark.