I use Simply Nourish (chicken and rice large breed) for my two rottie mixes. It's not a bad dry food and if your pup is doing well on it, then that's awesome.
As far as the raw you can introduce lots of meats, including organ meat as time passes. I would suggest introducing one at a time to avoid shocking her system. I would suggest trying to add different meats, because variety can be fun for dogs. I'm not super familiar with raw but check some of the threads here and do some googling to see how you feel about different meats.