It's not super bowl or bust but I think people are overrating Mccarthy based on the fact that most of his success happened with Aaron Rodgers 12 years ago.
Mccarthy had one of the most talented rosters in the league with Dallas the last 3-4 years and has underachieved. He is not coming to the Saints with the same talent he had in Dallas so he won't just come in here and win 12 games like people are saying he will do. This is not a 12 win team currently.