If there isn't any health issue, how big is his kennel? It sounds like it is pretty large, because dogs don't usually dirty where they sleep.
I'm like Michael, I don't pen my dogs up. I haven't had much problems, just the usual puppy chewing on a couple of shoes that were in reach. I have a piddle pad down just in case they have to go and we are asleep (one of us works day and one works night) or out of the house. It does quite well with the corgi, but the corgi mix is a rescue, and she has had some accidents. (Funny how you know which dog it is by their poo, isn't it?)

Other than that, they both usually let us know when they want out, which is ALWAYS. I've thought about getting a t-shirt that list the dog's daily activities.....let the dog out, let the dog in, let the dog out, let the dog in.