No, he hasn't said it in interviews and press conferences. He's said he's using Sat's language because it was easier for him to learn that language compared to the team learning his. That isn't "using Sat's playbook".Dana has said it himself in interviews and press conferences. It’d be said by game announcers. The only thing Dana had done is slim done the playbook.
It's not even hard to see. I've asked many people to show me the same plays being run as last year. No one has even attempted it because they can't.
It's not hard to see different plays this year. Just look at the screens we're running this year. Lest we forget our attempts at screens last year, they were God awful. This year? We've housed many and had long gains on others. The Wheel routes are slightly different as well.

