I don't think the casting job was terrible, I think it would be great if they kept Paul out of the house (and in general I like Paul)
I just don't think Matt nor Raven have shown their cards yet. They've had no reason to, which is why they've basically done what everyone wants. Kind of like Ian did a few years ago. No reason to actually look like you're good at this game until the top targets are out of the game.
I used to think what you do about Maven, but from the conversations they've been having, they basically are happy to be there....however I still hope that is part of strategy but as the game winds down, its looking like they don't really have plans. I would like nothing more than to see Matt make a power move.
I do know Raven is the most annoying/unlikable person in the house from the podcasts of people who watch the feeds every day.