Come on....I can't make a proper "Fire Pettine" Meme until I get a picture of him in Green and Gold!
I would hope the majority of those who wanted Capers out are happy with this hiring or at minimum will be patient enough to give the guy a chance. Personally, I don't think he has the players available (at the moment) to immediately turn things around. However, I am optimistic that with a new GM and a new DC, they may collaborate about the current players, FA's and the draft and start building a defense that Pettine can run successfully.
I really would like to know how much TT and Capers talked about what Dom needed on defense. You would think a ton, but then again, it wouldn't surprise me if Dom just worked with what he was given.