I live 15 minutes from Oakland and have seen quite a lot of Derek Carr before this year. I don't "follow" the Raiders, but they were the team on TV. I've seen enough that I was luke warm on him signing with the Saints but open to seeing what a change of scenery could do for him.
That said, I did say statistically. He actually has a better QB rating, completion % and Int % this year than his Raiders average. His TD % and Yards per game is worse this year than his Raiders average.
He did look better with the Raiders than he looks here though. There is hardly any denying that.