I've decided to gradually switch my pup from Wellness Fish & Sweet Potato dry food to Wellness CORE. Last night was his first dinner of the CORE.
This morning he went to the bathroom and it was fairly solid, but a lot, and definitely softer than usual. I figured that was to be expected. I left for about five hours and just came home to a mess - he had really soft, nasty accidents all over the house, even a little bit of projectile on my walls.

Gross!
At this point, do you think I should stick with gradually adding in the CORE or just say forget it? He definitely LIKES the CORE better so far.