Why would you think a team that went 33-24 the past 5 seasons and 5-6 the previous would have a talent advantage over most teams he faces?
He took that team and made them a national contender in two years.
There are plenty of teams that are firing coaches left and right that have talent advantages over most of the teams they face. Michigan, Texas, FSU, Miami, USC. They continue to struggle.
Will Urban succeed in the NFL? There is no guarantee, but acting like he has no shot and that he just coasted on talent to only lose an average of about 2 games his whole head coaching career is ludicrous