It does look like Augie's Dad is a very solid, stocky built Lab. It's still so hard to tell what kind of condition the dog is in, and whether they're underweight or overweight or what, without putting your hands on them. My advice is to keep him very active to tone him up (swimming is really good and low impact) and try to feed as much fresh, whole food as possible... meats, raw meaty bones if you're comfortable with them, pureed or cooked veggies, etc. Kibble is very calorie dense, compared to fresh foods, and supplementing helps fill him up without all of the calories, plus it's very healthy for him!
Most of the ones I know do ok on it some even look great... but for me its the long term risks that make it too scary too feed.
Right.
Feeding a premium food (at least in the vast majority of cases) can do nothing but help... so why not do it? A few premium kibbles are high priced, but most cost the same as Dog Chow in the long run, calorically. I have also noticed a tendency to look more bloated on foods with grains and such. Gonzo was squishy/bloated on Nutro, for sure! Even on a scarce amount of Nutro Low Calorie, he had extra weight on him.
I feed Taste of the Wild for kibble most of the time. I think it's awesome as far as price, and quality, and my dogs LOVE it. I can use the kibbles as high value training rewards, even.