Coming late to the party... but... my recommendation would be:
1. convert to a 100% raw diet for at least a few months... maybe 6 months to make sure the systems are all running well on raw with multiple proteins.
2. feed what ever you want going forward (keeping balanced nutrition in mind) - and make sure there is some raw in the picture each week.
I think once a dog is converted to raw, the system can handle a greater variety of foods. If you try and just add a little raw and keep kibble in the picture in the beginning, I think that might confuse the system and slow the transition to the higher acid stomach environment. I'm not a biologist, though, so this is just my theory.
Now that Denna is raw fed 95% of the time, she often gets "kibble" / store-bought treats.
We just got back from camping, where she ate a lot of "vital essentials" freeze-dried "kibble" along with some re-hydrated "honest kitchen" meals (which has something in it that made for lots of BIG poops).
Next week she'll be hanging at her favorite boarding location, so she'll be mixing a kibble product with raw there, too, due to limited fridge/freezer space availability.
She does just fine with the mix, but I'm always happy to get her back on 100% raw again.
