Saban at Alabama has had the most talent of any team in America on its roster, and its not even close. In order for Saban to perform up to the same standard, he would have to win every single national championship over a ten-year span. He has done very well, but technically you would have to say he has under-performed his team's talent. That's my point. After you get above a certain rank, the talent level means less as you compare it to on-field ranking just because the difficulty level of being undefeated is too d@mn high.
Besides, who ever claimed Urb was better than Saban? Nobody, that's who. Straw-man argument. They are both in the top-5 for active coaches IMO. I think the argument you were making was that Urb's coaching was sub-standard. So compare him with a coach on the level of sub-standards you are referring to.