Saban's first year at Alabama the Tide went 7-6. OSU did go 12-0 Meyer's first year in Columbus. Harbaugh turned things around at Stanford, but he didn't do it overnight.: 2007- 4-8, 2008- 5-7, 2009- 8-5, 2010- 12-1. How did they get recruits to come to their schools? Location, location, location. The number of blue chip recruits within the 500 mile radius of any of those schools dwarfs that of NU. If you can't see that, I don't know what to tell you. It's going to be a longer haul at NU for that reason alone. The Huskers have been mediocre for far too long for a 1 or 2 year turnaround. Add in the holes in the roster and the BoBo culture and Riley has a much tougher job than any of the above mentioned coaches at their current schools.
As I recall, Meyer had no interest in coming to NU from Utah because he said it would be too hard to recruit to.
Is Riley the answer? Who knows. Only time will tell, but if you expected NU to be playing for an NC this year, I've got some ocean front property in North Dakota I'd love to sell you.