I have a basset/beagle, Sparkie. He had not been happy with his food, and I finally found one that he'll eat (he still prefers layer feed) and I'm happy with the ingredients and price (it is one of the Diamond foods). Last week, we were Doxi sitting for MIL. It looks like Roxi Doxi is going to be comming back to live with us. MIL has never really liked her, I think the only reason she got her was because her friend had a daschund. She's not mistreated her, but she's never been loved Dh has finally convinced her to let her come here (he's been trying for years!) Anyhow, she eats Purina little bites-- which is puke! I read the ingredients, it's corn, wheat, soy, and then more corn. Besides that, it's MORE expensive than the lamb and rice based food. SO, my question, how hard is it to switch a 9yo dog over?