You don't have to have a documented solid foundation for every opinion you have. Sometimes you just get a good feeling about a guy. Scott seems super competent and and well liked and I could see him being a good fit. It doesn't blow my mind that Butch might think that. He spends a lot more time around him then I ever have.
I get the opposite feeling about CZA. Clearly nobody knows anything for sure. But I would rather go with the guy who connects and inspires confidence in his guys. I like that Scott is younger but has some unique coaching experiences in the past that he had to figure out as he went along. That will serve him well in the future.
I also don't think play calling is this crazy unique skill that you need years of experience in order to be good at it. I bet any one of our coaches could step in and do it fairly well. You just hope whoever Butch chooses has an elite feel for the flow of the game and gives us an advantage. We won't know until the season starts either way.