Is Bill Snyder the greatest CFB coach of all time?

I realize there was a similar discussion recently, but it's hard to not continually recognize how phenomenal the guy as been. He took one of, if not the worst program in collegiate sports and turned it into a consistent winner that perennially contends for bowl games that pre-Snyder the program never dreamed of reaching. He leaves for a few years and it goes back into the tank. He returns and rights the ship almost immediately.

If Snyder was ever scooped up by a traditional power that could consistently recruit elite talent would he have multiple national championships to his credit? Or is his success dependent on bringing a unique approach to a school that will more or less remain out of the limelight? Either way, Snyder's career is nothing short of genius.